Search

Your search keyword '"Xu, Qing"' showing total 290 results
Start Over Author "Xu, Qing" Journal cheminform
290 results on '"Xu, Qing"'

1. ChemInform Abstract: Efficient Synthesis of Unsymmetrical Heteroaryl Thioethers and Chalcogenides by Alkali Hydroxide-Mediated SNAr Reactions of Heteroaryl Halides and Dichalcogenides

Author

Xu Qing, Chenliang Su, Quan Liu, Xiantao Ma, and Xiaojuan Jia

Subjects
Chalcogen, chemistry.chemical_compound, Nucleophile, Chemistry, Nucleophilic aromatic substitution, Halide, General Medicine, Alkali metal, Combinatorial chemistry, Alkali hydroxide
Abstract

An efficient alkali hydroxide-mediated SNAr reaction of heteroaryl halides has been developed for the practical synthesis of the useful unsymmetrical heteroaryl thioethers and chalcogenides. The usually odorless, easily available, lowly toxic, and easily stored and handled diorganyl dichalcogenides can be used as safer and convenient chalcogen nucleophile precursors and diverse unsymmetrical heteroaryl chalcogenides can be obtained in good to high yields by the method.

Published
2016

2. ChemInform Abstract: Supramolecular Polymers Constructed Through Self-Sorting Host-Guest Interactions

Author

Xu-Qing Wang, Hai-Bo Yang, Wei Wang, and Yu-Xuan Wang

Subjects
Supramolecular polymers, chemistry.chemical_classification, Self sorting, chemistry, Supramolecular chemistry, Nanotechnology, General Medicine, Host (network)
Abstract

In this review article, a brief summary on the development of supramolecular polymers constructed through self-sorting host–guest interactions is presented. On the basis of self-sorting host–guest ...

Published
2015

17. ChemInform Abstract: An Efficient and Recyclable Catalyst for N-Alkylation of Amines and β-Alkylation of Secondary Alcohols with Primary Alcohols: SBA-15 Supported N-Heterocyclic Carbene Iridium Complex

Author

Li-Hua Cai, Zi-Wei Gao, Xiu-Feng Hou, Dong Wang, Ya-Nong Wang, Chen-Xi Wang, Rui Zhong, Xiao-Han Zhu, and Xu-Qing Guo

Subjects
Primary (chemistry), chemistry.chemical_element, General Medicine, Alkylation, Recyclable catalyst, law.invention, Catalysis, chemistry.chemical_compound, chemistry, law, Organic chemistry, Iridium, Carbene, Filtration
Abstract

The catalyst can be recovered by simple filtration and reused eight or twelve times (β-alkylation resp.

Published
2013

18. ChemInform Abstract: Pd(OAc)2Catalyzed Direct Arylation of Eletron-Deficient Arenes Without Ligands or with Monoprotected Amino Acid Assistance

Author

Xu-Qing Guo, Li-Hua Cai, Xiao-Han Zhu, Ya-Nong Wang, Rui Zhong, and Xiu-Feng Hou

Subjects
Reaction conditions, chemistry.chemical_classification, Chemistry, Regioselectivity, General Medicine, Medicinal chemistry, Catalysis, Amino acid
Abstract

Optimal reaction conditions are found for the regioselective monoarylation of disubstituted arenes.

Published
2013

19. ChemInform Abstract: Effect of Counterions and Central Cores of Tripodal Imidazolium Salts on Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling Reactions

Author

Xu-Qing Guo, Xiu-Feng Hou, Rui Zhong, and Ya-Nong Wang

Subjects
chemistry.chemical_classification, Ligand, Aryl, chemistry.chemical_element, Salt (chemistry), General Medicine, Coupling reaction, Catalysis, chemistry.chemical_compound, chemistry, Hexafluorophosphate, Polymer chemistry, Organic chemistry, Counterion, Palladium
Abstract

Among a variety of benzene-, nitrogen-, or carbon-centered tripodal imidazolium salts bearing different counterions, the benzene-centered hexafluorophosphate salt (TIMB) shows the best activity as ligand in the Suzuki—Miyaura cross coupling of aryl iodides or bromides (I) with arylboronic acids (II).

Published
2011

Catalog

Books, media, physical & digital resources
See catalog results