作者:Jeffrey A. Charonnat、Joseph M. Muchowski、Peter H. Nelson
DOI:10.1002/jhet.5570200447
日期:1983.7
The displacement reaction between sodium thiophene-3-thiolate and methyl 3-(bromomethyl)thiophene-2-carboxylate (5) gave the expected thioether 7a. Basic hydrolysis afforded the carboxylic acid 7b; conversion to the acid chloride, and treatment of the latter with stannic chloride then produced the bisthienothiepinone 1. Using analogous reactions the isomers 2-4 were also synthesized.
噻吩-3-硫代硫酸钠与3-(溴甲基)噻吩-2-羧酸甲酯(5)之间的置换反应得到了预期的硫醚7a。碱性水解,得到羧酸7b。转化为酰氯,然后用氯化锡处理后者,生成了bisthienothiepinone 1。使用类似的反应,还合成了异构体2-4。