N-aryl-2-chloroacetamides in the presence of different basic catalysts. Compounds 3a-e were used as precursors for synthesizing of pyridothienopyrimidinones 4a-e, pyridothienotriazinones 5a-e and tetrahydropyridothienopyrimidinones 6a-c via treatment with triethyl orthoformate, nitrous acid, and/or 4-chlorobenzaldehyde respectively. The photophysical properties of aminothienylthienopyridines 3a-e and tetrahydropyri
2-( N -arylcarbamoyl)methylsulfanyl-3-cyano-5-ethoxycarbonyl-6-methyl-4-(2'-thienyl)pyridines 2a-e and their isomers, 3-amino-2-( N- aryl carbamoyl)- 5-乙氧基-羰基-6-甲基-4-(2'-
噻吩基)
噻吩并[2,3- b ]
吡啶3a-e通过乙基3-
氰基-1,2-二氢-6-甲基-的反应合成4-(2'-thienyl)-2-thioxopyridine-5-carboxylate (1)与相应的N -aryl-2-chloroacetamides 在不同的碱性催化剂存在下。化合物3a-e用作合成
吡啶并
噻吩并
嘧啶酮4a-e、
吡啶并
噻吩并
三嗪酮5a-e和四氢
吡啶并
噻吩并
嘧啶酮的前体6a-c分别用
原甲酸三乙酯、
亚硝酸和/或
4-氯苯甲醛处理。研究了
氨基噻