The preparation of a unique boronic acid derivative, boronophthalide (I), has been reported, 3.4 but aside from the resistance of this compound to dehydration and to hydrolytic deboronation, little is known about its chemical reactivity. Therefore, a study of the chemical reactions of boronophthalide was undertaken. Apart from the purely chemical considerations, it was of interest to prepare hydrolytically-stable boronophthalide ...
