Synthesis of 3-Substituted and 2,3-Disubstituted Quinazolinones via Cu-Catalyzed Aryl Amidation
摘要:
Cul/4-hydroxy-L-proline catalyzed coupling of N-substituted o-bromobenzamides with formamide takes place at 80 degrees C, affording 3-substituted quinazolinones directly. Under these conditions other amides that were tested only provided simple coupling products, which can be converted into 2,3-disubstituted quinazolinones via HMDS/ZnCl2 mediated condensative cyclization.
THEIL, F. -P.;POEHLMANN, H.;PFEIFER, S.;FRANKE, P., PHARMAZIE, 1985, 40, N 5, 328-331
作者:THEIL, F. -P.、POEHLMANN, H.、PFEIFER, S.、FRANKE, P.
DOI:——
日期:——
POHLMANN H.; THEIL F. -P.; FRANKE P.; PFEIFER S., PHARMAZIE, 41,(1986) N 12, 856-858
作者:POHLMANN H.、 THEIL F. -P.、 FRANKE P.、 PFEIFER S.
DOI:——
日期:——
Synthesis of 3-Substituted and 2,3-Disubstituted Quinazolinones via Cu-Catalyzed Aryl Amidation
作者:Lanting Xu、Yongwen Jiang、Dawei Ma
DOI:10.1021/ol300084v
日期:2012.2.17
Cul/4-hydroxy-L-proline catalyzed coupling of N-substituted o-bromobenzamides with formamide takes place at 80 degrees C, affording 3-substituted quinazolinones directly. Under these conditions other amides that were tested only provided simple coupling products, which can be converted into 2,3-disubstituted quinazolinones via HMDS/ZnCl2 mediated condensative cyclization.