PANIAGUA, ESTHER;RUBIO, MARIA J.;SEOANE, CARLOS;SOTO, JOSE L., REC. TRAV. CHIM. PAYS-BAS, 106,(1987) N 11, 554-557
作者:PANIAGUA, ESTHER、RUBIO, MARIA J.、SEOANE, CARLOS、SOTO, JOSE L.
DOI:——
日期:——
1,2,3-Triarylpropenones as starting materials for 2-pyridinethiones
作者:Esther Paniagua、María J. Rubio、Carlos Seoane、José L. Soto
DOI:10.1002/recl.19871061102
日期:——
2-Pyridinethiones 3 are obtained in good yields from 1,2,3-triarylpropenones 2 by treatment with cyanothioacetamide 1. Disulfides 4 result from oxydation of 3. Pyridinethiones 3 undergo methylation at the sulfur atom, leading to (methylthio)pyridines 5, which can be hydrolized to carboxamides 6. Thieno[2,3-b]pyridines 7 are obtained from 3 upon reaction with methyl chloroacetate.
通过用氰基硫代乙酰胺1处理,可从1,2,3-三芳基丙烯酮2以高收率获得2-吡啶硫酮3 。二硫化物4是由于3的氧化而产生的。吡啶硫酮3在硫原子上发生甲基化,生成(甲硫基)吡啶5,可将其水解为羧酰胺6。硫代[2,3- b ]吡啶7是从3与氯乙酸甲酯反应得到的。