Expedient and High-Yield Synthesis of Alkylphos-Phonyl Bichlorides Under Mild, Neutral Conditions: Reaction of Bis(Trimethylsilyl)Alkyl Phosphonates with Oxalyl Chloride/Dimethylformamide

Abstract
Structurally variant bis(trimethylsilyl)alkyl phosphonates were converted in high yields (80–88%, distilled) to the corresponding phosphonyl dichlor-ides upon reaction with (COCl)2/DMF.