Studies on Organophosphorus Compounds XXXIII. Chemoselective Phase-Transfer Catalytic<i>S</i>-Alkylation of Dialkyl/diarylthiophosphinic Acids; A New Facile Route to<i>S</i>-Alkyl Dialkyl/diarylthiophosphinates
作者:Chengye Yuan、Hanzhen Feng、Qiang Lin
DOI:10.1055/s-1989-27147
日期:——
A phase-transfer catalytic (PTC) alkylation involving the reaction of alkyl bromide and dialkyl/diarylthiophosphinic acids in the presence of potassium carbonate and tetrabutylammonium bromide is described. The reaction proceeds by SN2 mechanism and gives exclusively S-alkylated products.