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Iron Halide-Mediated Regio- and Stereoselective Halosulfonylation of Terminal Alkynes with Sulfonylhydrazides: Synthesis of ( E )-β-Chloro and Bromo Vinylsulfones

2013; American Chemical Society; Volume: 78; Issue: 18 Linguagem: Inglês

10.1021/jo401581n

1520-6904

Xiaoqing Li, Xinhua Shi, Mingwu Fang, Xiangsheng Xu,

Chemical Synthesis and Reactions

Halosulfonylation of terminal alkynes was achieved with sulfonylhydrazides as the sulfonyl precursor and inexpensive iron halide as halide source in the presence of TBHP, allowing the regio- and stereoselective generation of (E)-β-chloro and bromo vinylsulfones.