A novel acid-catalyzed rearrangement of 2-substituted-3-(2-nitrophenyl)oxiranes for the synthesis of di- and mono-oxalamides
作者:Vakhid A. Mamedov、Vera L. Mamedova、Gul'nas Z. Khikmatova、Ekaterina V. Mironova、Dmitry B. Krivolapov、Olga B. Bazanova、Denis V. Chachkov、Sergey A. Katsyuba、Il'dar Kh Rizvanov、Shamil K. Latypov
DOI:10.1039/c6ra02586b
日期:——
novel one-pot synthetic approach to N1-(2-carboxyaryl)-N2-(aryl or H)oxalamides from3-(2-nitroaryl)oxirane-2-carboxamides via the classical Meinwald rearrangement and a new rearrangement sequence has been developed. The methodology is applicable to the synthesis of N-(2-carboxyphenyl)aryloxalmonoamides from (3-(2-nitrophenyl)oxiran-2-yl)(aryl)methanones. The method is operationally simple and high yielding
Facile synthesis of 2-carboxanilido-3-arylquinazolin-4-ones from N1-(2-carboxyphenyl)-N2-(aryl)oxalamides
作者:Vakhid A. Mamedov、Vera L. Mamedova、Alexandra D. Voloshina、Temur A. Kushatov、Victor V. Syakaev、Shamil K. Latypov、Aidar T. Gubaidullin、Dmitry E. Korshin、Daina N. Buzyurova、Il'dar Kh. Rizvanov、Oleg G. Synyashin
DOI:10.1016/j.tetlet.2019.151205
日期:2019.10
A simple and efficient approach for the synthesis of novel 2-carboxanilido-3-arylquinazolin-4-ones via the one-pot condensation of readily available N1-(2-carboxyphenyl)-N2-(aryl)oxalamides with various aromatic amines is described. Notably, this methodology allows us to synthesize 3-aryl-quinazolin-4-ones using aromatic amines with various substituents, both electron-donating and electron-withdrawing