Bisphosphonic Compounds. II. Preparation of Monophosphonic Starting Materials. Mixed Esters of Methylphosphonic Acid

Abstract
Methyl (1-methylelhyl) methylphosphonate was obtained from PCI3 via (PriO)PCI2 and (PriO)P(OMe)2 followed by the Michaelis-Arbuzov reaction with Mel. The yield was 79% with 95% chemical purity. Less reasonable conversions were obtained for some related mixed diesters.