A hypervalent iodine-induced disulfenylation of thiophenederivatives with thiophenols via a thiyl radical reaction pathway has been achieved. This transformation provides direct synthetic access to 2,3-disulfenylated thiophenederivatives in 34–78% yields with good functional group compatibility under mild reaction conditions.
Cu-Catalysed Direct Bis-Thiolation of Benzoheterocycles with Arylsulfonyl Hydrazides
作者:Lingjuan Chen、Jiangxin Pu、Ping Liu、Bin Dai
DOI:10.3184/174751918x15350179602459
日期:2018.9
bis-arylsulfenylated indoles (10), benzofurans (3), and benzothiophenes (3) and of monosulfenylated indoles (5), 12 of which are novel, were prepared in good yields via a Cu-catalysed direct sulfenylation of benzoheterocycles with arylsulfonylhydrazides. Sulfonothioates are probably the major thiolated intermediates in this transformation.