A novel approach to the synthesis of 3-methyl-1H-quinoxalin-2-ones has been described. These compounds were regioselectively prepared by starting from substituted phenylamines and alpha-chloropropionyl chloride through the efficient procedures of acylation, nitration, reduction, intramolecular alkylation, and oxidation.
A novel approach to the synthesis of 3-methyl-1H-quinoxalin-2-ones has been described. These compounds were regioselectively prepared by starting from substituted phenylamines and alpha-chloropropionyl chloride through the efficient procedures of acylation, nitration, reduction, intramolecular alkylation, and oxidation.
An Old Story in the Parallel Synthesis World: An Approach to Hydantoin Libraries
作者:Andrey V. Bogolubsky、Yurii S. Moroz、Olena Savych、Sergey Pipko、Angelika Konovets、Maxim O. Platonov、Oleksandr V. Vasylchenko、Vasyl V. Hurmach、Oleksandr O. Grygorenko
DOI:10.1021/acscombsci.7b00163
日期:2018.1.8
An approach to the parallel synthesis of hydantoin libraries by reaction of in situ generated 2,2,2-trifluoroethylcarbamates and α-amino esters was developed. To demonstrate utility of the method, a library of 1158 hydantoins designed according to the lead-likeness criteria (MW 200–350, cLogP 1–3) was prepared. The success rate of the method was analyzed as a function of physicochemical parameters
Synthesis of Substituted 1,3-Dimethyl-1H-quinoxalin-2-ones from Aniline Derivatives
作者:Xun Li、Donghua Wang、Jifeng Wu、Wenfang Xu
DOI:10.3987/com-05-10461
日期:——
Substituted 1,3-dimethyl-1H-quinoxalin-2-ones (7) have been synthesized through the procedures of acylation, nitration, reduction, intramolecular alkylation, oxidation, and N-methylation starting from 3,4-disubstituted aniline.