REACTIONS OF STYRYLTHIENYL KETONE, STYRYL FURYL KETONE WITH THIOCYANOACETAMIDE: SYNTHESIS OF SEVERAL NEW PYRIDINES, THIENO[2,3-b]PYRIDINES, PYRIDO [2′,3′:4,5]THIENO[3,2-c]PYRIDAZINES AND PYRIDO-[3′,2′:4,5]THIENO[3,2-d]PYRIMIDIN ONE DERIVATIVES
作者:Fawzy A. Attaby
DOI:10.1080/10426509808035673
日期:1998.8.1
3a, b which used as starting material for the synthesis of several heterocyclic compounds. Reaction with several halogeno-esters, halogeno-ketones and chloroacetamide gave 2-S-alkoyl pyridines 5a-d, 10a-d, 13a, b and 19a, b thieno[2,3-c] pyridines 6a, b, 11a, b 14a, b and 20a-d, pyrido[2′,3′,4:5]thieno[2,3-c]pyndazines 8a, b and pyrido[2′.3′:-4,5]thieno[2,3-d]pyrimidinones 15a, b 16a, b and 17a, b.
摘要 苯乙烯基噻吩酮和苯乙烯基呋喃基酮 2a、b 与硫氰基乙酰胺 (1) 反应生成二氢吡啶硫酮 3a、b,用作合成多种杂环化合物的原料。与几种卤代酯、卤代酮和氯乙酰胺反应得到 2-S-烷酰基吡啶 5a-d、10a-d、13a、b 和 19a、b 噻吩并 [2,3-c] 吡啶 6a、b、11a、b 14a、b和20a-d,吡啶并[2',3',4:5]噻吩并[2,3-c]并嗪8a、b和吡啶并[2'.3':-4,5]噻吩并[2, 3-d]嘧啶酮 15a,b 16a,b 和 17a,b。结构是基于元素分析和光谱数据研究建立的。