A new method preparation of trimethylsilyl ethers of III-valence phosphorus

Abstract

By the interaction of hydrophosphoryl compounds of various structures with hexamethyldisilazane at 20°C and in the presence of ZnSO4 and diethylamine, trimethylsilyl esters of acids of III-valent phosphorus were synthesized in high yields (89-94%). The reaction is completed in 4 hours, does not require the use of specially prepared solvents and an inert atmosphere, and can be proposed as a new synthetically useful and easy-to-perform method for the synthesis of trimethylsilyl esters of acids of III-valent phosphorus.