Photocycloaddition of 3-acetoxybenzo[b]thiophen 1,1-dioxide to cycloalkenes; a novel synthesis of substituted benzo[b]thiepinones
作者:Neil V. Kirby、Stewart T. Reid
DOI:10.1039/c39800000150
日期:——
Irradiation of 3-acetoxybenzo[b]thiophen 1,1-dioxide in the presence of cycloalkenes affords [π2 +π2] cycloadducts which undergo ring expansion to give substituted benzo[b]thiepinones on treatment with methanolic sodium hydroxide.
3-乙酰氧基苯并〔照射b ]噻吩1,1-二氧化物的环烯烃得到的存在[ π 2 + π 2]其经历扩环cycloadducts,得到取代的苯并[ b ]上用甲醇氢氧化钠处理thiepinones。