Organometallics

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

HC Brown, TE Cole

文献索引：Brown, Herbert C.; Cole, Thomas E. Organometallics, 1985 , vol. 4, p. 816 - 821

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被引用次数: 42

摘要

Methylboronic acid and ita anhydride, tximethylboroxin, 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 trialkoxyboranes and methyl Grignards with 2-methoxy-1, 3, 2-&0xaborinane yields the corresponding esters, readily hydrolyzed to methylboronic acid in good yields. Methylboronic acid can be ...