CONVENIENT HETEROCYCLIZATION REACTIONS WITH ETHYL 2-AMINO-4,5,6,7-TETRAHYDROBENZO[b] THIOPHENE-3-CARBOXYLATE: SYNTHESIS OF PYRAZOLE, ISOXAZOLE AND PYRIDAZINE
作者:Wagnat Wahba Wardaman
DOI:10.1080/10426500008045226
日期:2000.7
Abstract The ethyl 2-diazo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate 2 reacts with ethyl acetoacetate to give the hydrazone derivative 4. The reactivity of 4 towards a number of different reagents including active methylene compounds as well as the use of 4 to synthesize fused heterocyclic systems is described.
摘要 2-重氮-4,5,6,7-四氢苯并[b]噻吩-3-羧酸乙酯 2 与乙酰乙酸乙酯反应生成腙衍生物 4。4 对许多不同试剂的反应性,包括活性亚甲基化合物以及使用 4 合成稠合杂环系统。