Abstract The combination of diphenyl sulfoxide and oxalyl chloride was used to accomplish the dichlorination of olefins, in which chlorodiphenylsulfonium salt generated in situ was proposed to be the real active species as a chloronium ion source. Graphical Abstract
A Novel Method for the Chlorolactonization of Alkenoic Acids Using Diphenyl Sulfoxide/Oxalyl Chloride
作者:Rui Ding、Liyuan Lan、Shuhui Li、Yongguo Liu、Shaoxiang Yang、Hongyu Tian、Baoguo Sun
DOI:10.1055/s-0037-1609687
日期:2018.7
Abstract A facile chlorolactonization of alkenoicacids by treatment with diphenyl sulfoxide/oxalyl chloride has been developed. The reaction can generate various chlorolactones in moderate to good yields, wherein the chlorodiphenylsufonium salt derived from diphenyl sulfoxide/oxalyl chloride serves as the source of Cl+. A facile chlorolactonization of alkenoicacids by treatment with diphenyl sulfoxide/oxalyl
The direct synthesis of chlorolactones from differently substituted alkenoic acids, using either sodium hypochlorite or chloramineT as the source of electrophilic chlorine and ytterbium triflate hydrate as the Lewis acid is described. In both cases the reactions proceeded in good yields affording selectively five- or six-membered chlorolactones.