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The enantioselective intramolecular C-H insertion and cyclopropanation reactions of donor- and donor/donor-carbenes by a nondiazo approach are reported. [ABSTRACT FROM AUTHOR]

A diagram is presented which explains the chemical process of base-promoted Domino Reaction for the synthesis of 2,3-Disubstituted Indoles from 2-Aminobenzaldehyde/2-Amino Aryl Ketones, Tosylhydrazine, and Aromatic Aldehydes.

Review: 227 refs. [ABSTRACT FROM AUTHOR]

o-Hydroxyl-benzylalcohols bearing an acetylenic amine side chain are subjected to conditions A). [ABSTRACT FROM AUTHOR]

Alkylidiene cyclic carbonates are prepared by carboxylative cyclization of propargylic alcohols with CO2 using ZnI2/NEt3 as synergistic catalytic system. [ABSTRACT FROM AUTHOR]

The simple method delivers the cyclopropanation products in high yields and with very high diastereoselectivities. [ABSTRACT FROM AUTHOR]

The reaction tolerates various aryl substituted α-bromo ketones, but no heterocyclic or alkyl substituted α-bromo ketones. [ABSTRACT FROM AUTHOR]

Review: 90 refs. [ABSTRACT FROM AUTHOR]

A diagram is presented which shows the derivatives of phenanthrene, the annulation of the catalysis of palladium, and the synthesis of phenanthrenes and dibenzochrysenes.

Review: [overview of the asymmetric synthesis of dihydrobenzoxazinone- and dihydroquinazolinone-based anti-HIV agents. [ABSTRACT FROM AUTHOR]

The reaction of carbon dioxide with propargylic amines is promoted by a protic ionic liquid such as 1,8-diazabicyclo[5.4.0]-7-undecenium 2-methylimidazolide (DBM) that acts also as a solvent to give the corresponding oxazolidinones in high yields. [ABSTRACT FROM AUTHOR]

A variety of 2-hydroxydihydrofuran derivatives are synthesized under mild reaction conditions by a domino reaction of readily available 1,4-enediones with phenacyl pyridinium halides. [ABSTRACT FROM AUTHOR]

The title compounds (III) are obtained by reaction of CO2 with various propargylic amines using a combination of two ionic liquids as promoter under metal-free reaction conditions. [ABSTRACT FROM AUTHOR]

Intermediate formation of α-diazoketones (II) from glyoxal monohydrates (I) and tosylhydrazine is applied in the one-pot synthesis of 3-acylpyrazoles (IV) and (VI) as well as benzo[f]indazolediones (VIII) or chromeno[3,4-c]pyrazolones (XI). [ABSTRACT FROM AUTHOR]

The reaction is environmentally benign. [ABSTRACT FROM AUTHOR]

Review: 46 refs. [ABSTRACT FROM AUTHOR]

Application of 1,4-benzoquinone, juglone or 1,4-anthracenedione do not yield the corresponding products. [ABSTRACT FROM AUTHOR]

The dual solvent-catalyst [bmim]OAc can be reused at least five times without an observable decrease in catalytic activity. [ABSTRACT FROM AUTHOR]

The article offers information on the enantioselective addition reactions catalyzed by carbohydrate-derived organocatalysts.

An abstract of the article "Efficient Synthesis of Quinazoline-2,4(1H,3H)-diones from CO2 and 2-Aminobenzonitriles in Water Without Any Catalyst" by J. Ma and colleagues is presented.

Modularly designed organocatalysts formed in situ from the self-assembly of primary α-amino acids and Cinchona alkaloid thioureas are found to be excellent catalysts for the enantioselective Michael addition of enolizable ketones and aldehydes (II) and (IV) to maleimides (I). [ABSTRACT FROM AUTHOR]

Aryl iodides, N-benzoyloxyamines and N-tosylhydrazones are used for the preparation of various title compounds. The process involves formation of one C--N and one C--C bond where the amine function is successfully introduced at the o-position. Diamination is also possible by double C--H activation [cf. (XII)]. Furthermore, the generality of the method is demonstrated with diazo compound (XV) as the insertion component under modified conditions. [ABSTRACT FROM AUTHOR]

An abstract of the article "Catalytic Enantioselective 1,2-Addition of Terminal 1,3-Diynes to Trifluoromethyl Ketones" by Yan Zheng and colleagues is presented.

The efficient title reaction of ethoxycarbonyl, benzoyl or cyano substituted aryl or alkylketones with trans-β-nitrostyrenes and acetylene dicarboxylates provides polysubstituted phthalic acid derivatives in high yields. [ABSTRACT FROM AUTHOR]

Besides the previously unknown derivatives (I)-(IV), 12 known analogs were found as well. [ABSTRACT FROM AUTHOR]

A novel, three-component C-C, C-N and C-O bond forming reaction is described. [ABSTRACT FROM AUTHOR]

A diagram of the access to polyfunctional pyrazoles by highly efficient regioselective multicomponent reaction is presented.

The article presents chemical equations related to the article "Synthesis of 1,2-Disubstituted Acenaphthylenes by Palladium-Catalyzed Annulation Reactions of Dibromoarenes with Internal Alkynes" by G. Li and others, published in the periodical "Synlett" in 2014.

Review: 230 refs. [ABSTRACT FROM AUTHOR]

An efficient method for the asymmetric hydrogenation of fluorinated quinazolines (I) to chiral fluorinated dihydroquinazolines is developed using a Pd-SynPhos complex as catalyst. [ABSTRACT FROM AUTHOR]

Review: more than 150 refs. [ABSTRACT FROM AUTHOR]

The new title compound is hydrothermally prepared from a mixture of MgO, TeO2, and H2O (autoclave, 220 °C, 3 d) and characterized by single crystal XRD, UV and IR spectroscopy, and DFT band structure calculations. [ABSTRACT FROM AUTHOR]

The article presents chemical equations related to the article "Stereoselective Synthesis of Fused Aziridines via One-Pot Sequential Decarboxylative Mannich Reaction and Oxidative C-H Amination of Cyclic Imines with -Ketoacids" by Bo-Nan Lai and others, published in the "Organic Letters" in 2016.

This new cyclization process proceeds in water under metal-free conditions to afford a series of sulfonylated products in good yields with C-S and C-I bond formation in one step. [ABSTRACT FROM AUTHOR]

An abstract of the article "Silver-Catalyzed [3 + 2] Cycloaddition of Isocyanides with Diazo Compounds: New Regioselective Access to 1,4-Disubstituted-1,2,3-triazole" by Joe Smith is presented.

The title tetrazoles are regioselectively obtained from various aryl and heteroaryl diazonium salts with good functional group tolerance. [ABSTRACT FROM AUTHOR]

The article presents chemical equations to the article "Highly Regio-, Diastereo-, and Enantioselective Mannich Reaction of Allylic Ketones and Cyclic Ketimines: Access to Chiral Benzosultam" by B. Qiaq and others published in "Organic Letters" in 2015.

The title cyclopropanation of trisubstituted olefinic azlactones [e.g. (I)] gives the desired products [e.g. (III)] in good to high yields with excellent diastereoselectivities. [ABSTRACT FROM AUTHOR]

An abstract of the article "Oxone-Promoted Hydration of Electron-Deficient Allenic Esters and Ketones into 1,3-Dicarbonyl Compounds" by Y.-P. Yi and colleagues is presented.

Various enyne carbinamine products are highly enantioselectively obtained by catalytic asymmetric addition of terminal 3-en-1-ynes to N-sulfonyl aldimines in the presence of Zn-BINOL complexes which are generated in situ from ZnMe2 and chiral binol-type ligands. [ABSTRACT FROM AUTHOR]

A general and practical methodology for the formation of 3-trifluoromethylindazoles under mild reaction conditions is developed. [ABSTRACT FROM AUTHOR]

A novel Ni-catalyzed decarboxylative aldol reaction of β,γ-saturated α-ketoesters with β-ketoacids is reported. [ABSTRACT FROM AUTHOR]

The method tolerates a variety of aryl, hetaryl, and alkyl β-keto acids and furnishes the desired 3-functionalized 3-indolyloxindoles with an all-quaternary stereocenter in high yields and enantioselectivities. [ABSTRACT FROM AUTHOR]

An abstract of the article "Tandem Stereoselective Synthesis of New Trifluoromethylated Pyranopyrazoles" by J. Wang et al. is presented.

An abstract of the article "Broensted Acid Promoted Addition-Cyclization and C-C Bond Cleavage: A Convenient Synthesis of 2-Amino-5-aroylmethylthiazoles Derivatives" by Fan Ni and colleagues is presented.

The article presents chemical equations related to the article "Lithium Binaphtholate-Catalyzed Enantioselective Enyne Addition to Ketones: Access to Enynylated Tertiary Alcohols's" by H. Cai, J. Nie, Y. Zheng, and others, published in the periodical "Journal of Organic Chemistry" in 2014.

A new catalytic enantioselective decarboxylative Mannich reaction of β-ketoacids with cyclic and acyclic aldimines is presented. [ABSTRACT FROM AUTHOR]

Use of other electron-rich arenes such as N,N-dimethylaniline and 3-dimethylaminoanisole does not deliver the desired products. [ABSTRACT FROM AUTHOR]

An enantioselective aza-Friedel-Crafts reaction of cyclic N-acylketimines with electron-rich arenes is developed. [ABSTRACT FROM AUTHOR]

DPC 083 (X) is prepared in 5 steps starting from the enantiomer of Va. [ABSTRACT FROM AUTHOR]