BCl<sub>3</sub>-Mediated Ene Reaction of Sulfur Dioxide and Unfunctionalized Alkenes
作者:Dean Marković、Chandra M. R. Volla、Pierre Vogel、Adrián Varela-Álvarez、José A. Sordo
DOI:10.1002/chem.201000164
日期:2010.5.25
of BCl3, the unstable sulfinicacid form stable sulfinicacid⋅BCl3 complexes that can be reacted in situ with NCS to generate corresponding sulfonyl chlorides, or with a base to generate corresponding sulfinates. The latter can be reacted with electrophiles to generate sulfones, or with silyl chloride to form β,γ‐unsaturated silyl sulfinates. The sulfinicacid⋅BCl3 complexes can be reacted with ethers
Preparation of Functionalized α,β-Unsaturated Sulfonamides via Olefin Cross-Metathesis
作者:Łukasz Woźniak、Adam A. Rajkiewicz、Louis Monsigny、Anna Kajetanowicz、Karol Grela
DOI:10.1021/acs.orglett.0c01471
日期:2020.7.2
The synthesis of functionalized α,β-unsaturated sulfonamides by means of cross-metathesis of vinyl sulfonamides and olefins has been developed. The reaction proceeds smoothly in the presence of Hoveyda–Grubbs catalyst and its nitro analogue, providing a wide range of substituted products. The usefulness of this methodology has been proven in the preparation of new derivatives of biologically active