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Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To better integrate cutting-edge knowledge, theories, technologies, and methods into senior undergraduate comprehensive experimental courses, this paper designed an experiment involving the modification of diacetone-D-galactose based on Dess-Martin (DMP) oxidation and Horner-Wadsworth-Emmons (HWE) reactions. We established experimental procedures by researching the oxidation of alcohols and the alkenylation of aldehydes. 2-iodoacylbenzoic acid (IBX) was synthesized by oxidizing o-iodobenzoic acid with potassium peroxymonosulfate (oxone). This was then transformed into DMP under the influence of acetic acid and acetic anhydride. DMP was subsequently employed to oxidize diacetone-D-galactose, and the HWE reaction was finally used to achieve the differential isomeric aldehyde alkenylation. The progress of the reaction was monitored using thin-layer chromatography (TLC) with various staining methods. Schlenk technique was adopted for anhydrous and anaerobic operations, and the target products were isolated and purified through column chromatography. The structure and purity of the compounds were characterized using infrared spectroscopy, nuclear magnetic resonance spectroscopy, and high-resolution mass spectrometry. DMP oxidation has the advantages of mild conditions, simple operations, high yield and selectivity, and low toxicity. The designed experimental procedures are comprehensive, rich in content, and emphasizes integrative nature, which is beneficial for the organic integration of students' knowledge, capabilities, and qualities, while cultivating their ability to tackle complex problems and develop advanced thinking skills. [ABSTRACT FROM AUTHOR]

With the increase of exploratory projects of comprehensive chemistry laboratory in universities, the types and quantity of hazardous chemicals are increasing. Due to the frequent occurrence of safety accidents in university laboratories, the safety management of hazardous chemicals has become an important concern of chemistry laboratories in recent years. According to the present situation for management and existing problems, this paper proposes a series of countermeasures, including three-level linkage responsibility and safety inspection system, strengthening the construction of laboratory management echelon, refining the process of purchase, store and use of hazardous chemicals, and strengthening the information construction of management platform. It effectively improves the safety responsibility consciousness of the teachers and students, and gradually reduces the hidden danger of laboratory safety, which provides a reference for the safety management mode of hazardous chemicals. [ABSTRACT FROM AUTHOR]

In recent years, the cross-dehydrogenative coupling (CDC) reaction has received widespread attention in the field of organic synthetic chemistry. This strategy avoids the pre-functionalization of substrates in the reactions that form carbon--carbon bonds. It demonstrates high atomic economy and aligns with the development requirements of green chemistry. Furthermore, asymmetric CDC reactions can realize stereoselective construction of carbon--carbon bonds, which currently constitutes a key area of research in organic synthesis. This paper reviews the research progress in asymmetric CDC reactions and provides a perspective on the future development direction in this field. [ABSTRACT FROM AUTHOR]

Materials Analysis Technology course serves as a fundamental course for majors in materials and chemistry, distinguished by its inherent scientific attributes. Taking the teaching practice of ideological and political education in Material Analysis Technology course as an example, this paper explores the implementation and effects of ideological and political education from several aspects, including the logical organization of professional knowledge, the thematic arrangement of teaching chapters, the explicit integration of ideological and political elements, the procedural documentation of teaching records, and the diversification of performance evaluation. Our findings offer insights and guidelines for the incorporating ideological and political education into science and engineering courses. [ABSTRACT FROM AUTHOR]

Taking the carbon family as an example, this paper introduces the teaching design and practice for incorporating ideological and political education into chemistry of elements. Frontiers of science and technology, materialist dialectics and scientific epistemology, patriotism, ecological civilization thought, China's "double carbon" story in the new era, history of discovery of elements, scientific ethics and morality, etc. were aptly incorporated into the links of content setting and classroom teaching aiming at cultivating students' spirit of the craftsman, scientific thinking, patriotism, ecological civilization thought, exploration spirit, and professional ethics. Simultaneous promotion of "knowledge transfer" and "value guidance" was realized. [ABSTRACT FROM AUTHOR]

The COVID-19, AIDS, influenza, and other infectious viral diseases have a significant impact on human health, and new antiviral drugs are continuously emerging to combat these diseases. Herein, aiming at anti-SARS-CoV-2, anti-HIV, and anti-influenza virus, the latest research progress of small-molecule drugs is reported in this paper. The discovery process, mechanism of action, synthesis process, and structure--activity relationship research of each drug are systematically expounded to promote antiviral drug research and development. [ABSTRACT FROM AUTHOR]

A small proportion of nephropathy patients administered gadolinium contrast agents for nuclear magnetic resonance have been reported to develop nephrogenic systemic fibrosis (NSF). This paper introduces the mechanism of the transformation and deposition of NSF, aiming to reveal the chemical nature of the gadolinium phosphate bioparticles in nephrogenic system fibrosis. This research will provide an important theoretical basis for future studies on the occurrence, development, and formation of nephrogenic system fibrosis and the removal of sediment residues. Moreover, a new idea for introducing a biocompatible second chelating agent into the gadolinium contrast agent system has been proposed, which aims to improve the safe use of gadolinium contrast agent. [ABSTRACT FROM AUTHOR]

Medicinal chemistry, as a fundamental course in undergraduate pharmacy programs, serves as the cornerstone of innovative drug research. Enhancing the timeliness, innovation, and advanced nature of medicinal chemistry teaching content to meet the demands of talent development in contemporary pharmaceutical innovation is a challenge warranting deep consideration and exploration. This paper, grounded in the teaching content of the cardiovascular system drugs chapter, constructs course cases that incorporate the frontiers of the discipline, interdisciplinary studies, and curriculum-based ideological and political education. It aims to provide new materials and perspectives for teaching in medicinal chemistry and related fields. [ABSTRACT FROM AUTHOR]

β-dicarbonyl compounds are important intermediates in organic synthesis, and their chemical properties play a major role in organic chemistry teaching. On this basis, this paper focuses on the synthesis and application of α-diketones involving hydration of alkynes, oxidation of alkynes and photocatalytic reaction, etc. The content of this paper is both closely related to and also an expansion of fundamental organic chemistry. Furthermore, the application of α-dicarbonyl compounds can broaden students' horizons and boost their interest in learning. [ABSTRACT FROM AUTHOR]

General education courses are important for the students to form a complete knowledge structure and balance between science and liberal arts. The author has offered a course named Chemistry in Liberal Arts and uses Chinese ceramics as an example in this paper. The artistic characteristics of several important stages in the development of Chinese ceramics and the relative chemical knowledge are introduced. The paper also discusses the exploration to combine scientific knowledge with cultural heritage, so as to encourage students to enhance their national cultural confidence and improve their scientific and humanistic literacy. [ABSTRACT FROM AUTHOR]

The training of scientific research ability and innovation consciousness of college students is one of the key goals in undergraduate teaching. The chemical experiment teaching is the most effective way to realize comprehensive chemistry education, further, it is crucial to cultivate the scientific thinking and innovation ability of students. The course combines scientific research with experimental teaching of school, so that it enhances level and depth of experiment teaching. This paper mainly introduces the construction of scientific research foundation and innovative experiment from the aspects of course orientation and objectives, construction of course team, construction of the course content and resources, and course implementation and evaluation. After years of exploration and practice, the extra-curricular scientific research experiment course has made great achievements in talent cultivation, teaching reform, and scientific research. And it has effectively promoted the experimental curriculum reform. Meanwhile, this paper further improvement and measures in view of the deficiencies of the course, and also makes prospects for the future study. [ABSTRACT FROM AUTHOR]

Approximate calculation of the pH of a NaHA solution plays an important role in analytical chemistry. However, the physical meanings and applicable conditions of the pH approximate formulas are not demonstrated in detail in current textbooks. In this paper, the applicable conditions and physical significance of various approximate formulas are described. The approximate formulas with incorrect physical meanings and inappropriate applicable conditions should be modified. NaHA solutions can be categorized as acidic (Ka1Ka2 > Kw) or alkaline (Ka1Ka2 < Kw). When cKa2 ≥ 20Kw, by assuming that the production of OH- from water and from HA- is negligible, the approximate formula of an acidic NaHA solution is obtained. When c ≥ 20Ka1 (namely cKb2 ≥ 20Kw), the approximate formula of an alkaline NaHA solution is obtained by ignoring the production of H+ from water and HA-. The formula pH = (pKa1 + pKa2)/2 is suitable for both acidic and alkaline NaHA solutions, but their applicable conditions are quite different. This paper carefully discussed the pH calculation of NaHA solutions. The computation results demonstrated that some formulas should be disabled and the related wrong statements in textbooks be corrected. [ABSTRACT FROM AUTHOR]

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)