作者:G. Dore、M. Bonhomme、M. Robba
DOI:10.1016/0040-4020(72)80091-7
日期:1972.1
The synthesis of carbonyled benzothiophenic derivatives at C-2 and C-3 has been developed through intermediate organolithium compounds with a view to subsequent cyclization as in benzothienopyridazines: benzothiophene-dialdehyde-2,3 ketone-aldehydes, acid-aldehydes and aldehyde-ketoneamides. The condensation with hydrazine gave benzothienopyridazine, 1-methyl derivative, and N,N-diethylcarboxamides
已经通过中间有机锂化合物开发了在C-2和C-3上羰基化苯并噻吩衍生物的合成,以期随后如苯并噻吩并哒嗪中的环化反应:苯并噻吩-二醛-2,3酮-醛,酸-醛和醛-酮酰胺。与肼缩合得到苯并噻吩并哒嗪,1-甲基衍生物和在C-1和C-4的N,N-二乙基羧酰胺。通过温和的降解反应获得杂环。通过RMN和质谱研究1-N,N-二乙基羧酰胺基哒嗪的碱性水解产物可得到桥联的环状结构。