Azo coupling of 5-substituted furan-2(3H)-ones and 1H-pyrrol-2(3H)-ones with arene(hetarene)diazonium salts
摘要:
5-Substituted furan-2(3H)-ones and 1-phenyl-1H-pyrrol-2(3H)-ones reacted with diazonium salts derived from substituted anilines and 1H-1,2,4-triazol-5-amine to give azo coupling products at the methylene group in the heteroring. The products were found to exist as hydrazone tautomers.
Azo coupling of 5-substituted furan-2(3H)-ones and 1H-pyrrol-2(3H)-ones with arene(hetarene)diazonium salts
作者:D. N. Gavkus、O. A. Maiorova、M. Yu. Borisov、A. Yu. Egorova
DOI:10.1134/s107042801209014x
日期:2012.9
5-Substituted furan-2(3H)-ones and 1-phenyl-1H-pyrrol-2(3H)-ones reacted with diazonium salts derived from substituted anilines and 1H-1,2,4-triazol-5-amine to give azo coupling products at the methylene group in the heteroring. The products were found to exist as hydrazone tautomers.
An unexpected simple synthesis of N-substituted 2-acetoxy-5-arylpyrroles and their hydrolysis to 3 and 4-pyrrolin-2-ones
作者:Georgia Tsolomiti、Athanase Tsolomitis
DOI:10.1016/j.tetlet.2004.10.136
日期:2004.12
The unexpected synthesis of N-substituted 2-acetoxy-5-arylpyrroles, from the reaction of 3-aroyl-propionamides with a large excess of refluxing acetylchloride, and their alkaline hydrolysis to 3- and 4-pyrrolin-2-ones, is described.