Vanadium-catalyzed sulfenylation of indoles and 2-naphthols with thiols under molecular oxygen

被引:153
作者
Maeda, Y [1 ]
Koyabu, M [1 ]
Nishimura, T [1 ]
Uemura, S [1 ]
机构
[1] Kyoto Univ, Grad Sch Engn, Dept Energy & Hydrocarbon Chem, Nishikyo Ku, Kyoto 6158510, Japan
关键词
D O I
10.1021/jo048758e
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Vanadium oxyacetylacetonate [VO(acac)(2)] works as a catalyst for 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. This catalytic system can also be applied to 2-naphthols instead of indoles to give the corresponding 1-sulfanyl-2-naphthols in up to 57% yield.
引用
收藏
页码:7688 / 7693
页数:6
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