Simple One-Pot Synthesis of Thieno[2,3-<i>b</i>]thiophene Derivatives under Solid–Liquid PTC Conditions. Useful Starting Material for the Synthesis of Biological Active Compounds
作者:Ahmed M. M. El-Saghier
DOI:10.1246/bcsj.66.2011
日期:1993.7
hydrazide derivative which was also subjected to react with acetylacetone, ethyl acetoacetate, malononitrile, CS2, phenyl isothiocyanate, p-chlorobenzaldehyde and diazotization to afford the described compounds. Treatment of 2,5-bis(azidocarbonyl)-3,4-dimethylthieno[2,3-b]thiophene with ethyl cyanoacetate, diethyl malonate or malononitrile gave the corresponding triazole derivatives.
在相转移催化条件下制备了多种噻吩并 [2,3-b] 噻吩。3,4-二甲基噻吩并[2,3-b]噻吩-2,5-二羧酸二乙酯与水合肼反应得到相应的酰肼衍生物,该衍生物也与乙酰丙酮、乙酰乙酸乙酯、丙二腈、CS2、异硫氰酸苯酯、对氯苯甲醛和重氮化得到所述化合物。用氰乙酸乙酯、丙二酸二乙酯或丙二腈处理2,5-双(叠氮羰基)-3,4-二甲基噻吩并[2,3-b]噻吩,得到相应的三唑衍生物。