Organosilicon compounds XVII. Introduction of the dialkyl phosphonate and dialkyl thiophosphonate moieties on an organosilicon substituted heterocyclic system

Abstract

Abstract A number of new dialkyl 2‐(5‐trisubstitutedsilyl)thienylphosphonates and thiophosphonates as well as dialkyl 2‐(5‐trisubstitutedsilyl)furylphosphonates and thiophosphonates were prepared via reaction of the 5‐(trisubstitutedsilyl)‐2‐lithiothiophenes and furans with dialkyl chloro‐phosphate and dialkyl chlorothiophosphate. Moreover, some diethyl 2‐[5‐(trisubstitutedsiIyl)‐2‐thienyl] ethyl thiophosphates are reported.