An efficient synthesis of selenothiophosphinic acid salts is achieved by reacting selenothiophosphinic acid S-(2-trimethylsilyl)ethyl esters with ammonium or alkalimetal fluorides. The X-ray structure analysis of the potassium 18-crown-6 selenothiophosphinic acid salt shows that the salt is monomeric. Alkylation of the salts proceeds at the selenium atom whereas acylation occurs at the sulfur atom
Enantiomerically pure P-chiral phosphinoselenoic chlorides: inversion of configuration at the P-chirogenic center in the synthesis and reaction of these substances
作者:Tsutomu Kimura、Toshiaki Murai
DOI:10.1039/b507755a
日期:——
Reaction of diastereomerically pure phosphinoselenoic acid salts with oxalyl chloride leads to enantiomerically pure P-chiral phosphinoselenoic chlorides with inversion of configuration at phosphorus; one of these chlorides is converted to a phosphinoselenothioic acid salt with a high degree of enantioselectivity.