the direct synthesis of 3-sulfanylindoles from indoles and thiols under an atmospheric pressure of molecular oxygen as a reoxidant. For example, the reaction of 2-phenylindole with benzenethiol in the presence of a catalytic amount of VO(acac)2, potassium iodide, and 2,6-di-tert-butyl-p-cresol in chlorobenzene under molecular oxygen proceeds to afford 2-phenyl-3-(phenylsulfanyl)indole in 86% yield
Cyclization of 2- and 3-indolythioalkanoic acids to novel indole-containing tricyclic ring systems
作者:Pierre Hamel、Mario Girard
DOI:10.1002/jhet.5570330624
日期:1996.11
series of 2- and 3-indolylthioalkanoic acids of various chain lengths were cyclized under dehydrative conditions affording tricyclic indole-containingringsystems wherein the third ring contains a sulfur atom attached to the 2- or 3-position of the indole ring. This methodology affords entry into the novel thiepino[3,2-b]indole, thiocino[2,3-b]indole and thiocino[3,2-b]indole ringsystems.
在脱水条件下将一系列各种链长的2-和3-吲哚基硫代链烷酸环化,得到含三环吲哚的环系统,其中第三个环含有连接到吲哚环的2-或3-位的硫原子。该方法提供了新的噻吩并[3,2- b ]吲哚,噻吩并[2,3- b ]吲哚和噻吩并[3,2- b ]吲哚环系统的入口。