Selective preparation of borinic esters from Grignard reagents and selected trialkoxyboranes
TE Cole, BD Haly
Index: Cole, Thomas E.; Haly, Becky D. Organometallics, 1992 , vol. 11, p. 652 - 657
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Citation Number: 14
Abstract
The reaction of triallroxyboranes with ethylmagnesium bromide was investigated for the selective alkylation to the symmetrical borinic esters, R2BOR'. Triisopropoxyborane was found to react cleanly with 2 equiv of the Grignard reagent to form diethylisopropoxyborane at-40" C. The selectivity of this reaction is kgely controlled by the stability of the bromomagnesium diethyldiisopropoxyborate, MgBr [Et, B (O'Pr),]. Triisopropoxyborane ...
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