Sg. D'Yachkova et al., Photochemical phosphorylation of (alkylthio)chloroacetylenes with phosphorus trichloride, RUSS J G CH, 70(10), 2000, pp. 1530-1532
Phosphorus trichloride regioselectively adds to (alkylthio)chloroacetylenes
under UV irradiation to give a mixture of the E and Z isomers of [2-(alkyl
thio)-1,2- dichlorovinyl]dichlorophosphines in high yield.