A CONVENIENT SYNTHESIS OF DITHIENO[2,3-b] [2,3-h]QUINOLINES AND PYRIMIDO [4′,5′:4,5]THIENO [2,3-b]THIENO[2,3-h]QUINOLINES
作者:Ahmed A. Geies
DOI:10.1080/10426509908037011
日期:1999.5.1
chlorobenzaldehyde to yield the benzylidene derivative 2 which underwent Michael addition reacting with cyanothioacetamide in methanolic sodium methoxide solution to give the thienoquinoline 3. Compound 3 was reacted with α- halo compounds to obtain the substituted thio intermediates 4a-f, which upon treatment with sodium ethoxide produce the dithienoquinoline derivatives 5a-f. Thienopyrimidothienoquinoline