Copper-Catalyzed Heck-Type Couplings of Sulfonyl Chlorides with Olefins: Efficient and Rapid Access to Vinyl Sulfones
作者:Lixia Liu、Pan Xue、Qiulin Chen、Chengming Wang
DOI:10.1016/j.tetlet.2021.153319
日期:2021.9
A copper-catalyzed redox-neutral alkene sulfonylation reaction has been developed. This reported protocol can be easily scale up to a gram scale, and smoothly applied to the late-stage modification of several bioactive molecules.
trans-1-(Arylsulfonyl)-2-arylcyclopropanes and derivatives of cyclopropanesulfonic acid
作者:William E. Truce、Christian T. Goralski
DOI:10.1021/jo01263a022
日期:1969.11
Fast Heating‐Assisted One‐Pot Copper‐Catalyzed Sulfonylation and Sulfochlorination of Styrenes
作者:Jorge Saavedra‐Olavarría、Patricio Hermosilla‐Ibáñez、Iriux Almodóvar、Edwin G. Pérez
DOI:10.1002/ejoc.202101526
日期:2022.8.5
AbstractHere, a strategy for the synthesis under fast‐heating conditions of vinyl sulfones and β‐chlorosulfones from styrene derivatives, tosyl chloride (TsCl) as sulfonyl and chlorine source, and CuBr‐neocuproine as the catalytic system is reported. The reaction occurs through an atom transfer radical addition (ATRA) mechanism to generate the sulfochlorinated adducts followed by E2 elimination to generate the vinyl sulfones. This methodology allows a wide range of vinyl sulfones and β‐chlorosulfones to be obtained using inexpensive reagents in one and five minutes respectively. These reactions appear as an interesting fast and easy‐to‐handle alternative to obtain these compounds.