Organometallics

Homologation of boronic esters to. alpha.-chloro boronic esters

DS Matteson, D Majumdar

Index: Matteson, Donald S.; Majumdar, Debesh Organometallics, 1983 , vol. 2, p. 1529 - 1535

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Citation Number: 104

Abstract

Results (Dichloromethy1) lithium was prepared from butyllithium and dichloromethane in tetrahydrofuran (THF) at-100 OC5J1 and then treated with the boronic ester 1 to be homologated. The resulting solution was allowed to stand at room temperature overnight in order to rearrange the intermediate borate complex (2) to the a-chloro boronic ester (31, which was isolated simply by filtering the precipitated lithium chloride and distilling the ...