Organoboranes. 39. Convenient procedures for the preparation of methylboronic acid and trimethylboroxin

Article abstract of DOI:10.1021/om00124a002

Methylboronic acid and its anhydride, trimethylboroxin, were prepared by three routes. The carbonylation of borane-dimethyl sulfide gives in high yields trimethylboroxin, readily hydrated to methylboronic acid. The reaction of methyllithium with selected