Organometallics

Organoboranes. 40. A simple preparation of borinic esters from organolithium reagents and selected boronic esters

HC Brown, TE Cole, M Srebnik

Index: Brown, Herbert C.; Cole, Thomas E.; Srebnik, Morris Organometallics, 1985 , vol. 4, p. 1788 - 1792

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Citation Number: 23

Abstract

Monoorganyldiisopropoxyboranes, RB (Oi-Pr) 2, react cleanly at-78" C with 1 equiv of organolithium compounds, R'Li, to form the corresponding complexes of the borinic acid esters, LiRR'B (Oi-Pr) p. Treatment of these complexes with an equivalent of anhydrous hydrogen chloride in ethyl ether liberates the borinic esters, RR'BO-i-Pr, and isopropyl alcohol, usually readily separated by distillation. Alternatively, treatment of the complexes ...