The Arbuzov reaction of trimethyl and triethyl phosphites with acyl chlorides gave 1-oxoalkylphosphonates in 57–80% yields. The Wittig reaction of the phosphonates with methylenetriphenylphosphorane gave vinylphosphonates in 25–59% yields. Hydroboration of vinylphosphonates in oxolane gave 2-hydroxyethylphosphonates in 50–65% yields. The procedure seems to be a good synthetic method to afford 1-alkyl-substituted 2-hydroxyethylphosphonates which have one more carbon atom than the starting 1-oxoalkylphosphonates.
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Yamashita et al. (1980) studied this question.