Intermolecular radical addition of alkylthio- and arylthiodiphenylphosphines to terminal alkynes
Intermolecular radical thiophosphination of terminal alkynes with alkylthio- and arylthlophosphlnes affords 1-thlo-2-phosphlno-1-alkenes In good yields. The addition reaction proceeds predominantly In an anti fashion to yield E Isomers.