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Diboronic acid in the spotlight: Molander et al. have developed an excellent method for the direct synthesis of aryl boronic acids from aryl chlorides (see scheme). In this palladium-catalyzed procedure, diboronic acid, a notably underutilized reagent, was used as the boron source. The boronic acid products can be isolated from the procedure, or used in one-pot reactions to give a wide range of boronates and biaryls.
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Pilarski et al. (2011) studied this question.
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