Two different products from the reaction between 2-formylphenylboronic acid and benzhydrazide: benzoyl hydrazone versus dimer
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The reaction of benzhydrazide and 2-formylphenylboronic in H2O at ambient temperature afforded the benzoyl hydrazone (E)-{2-[(2-benzoylhydrazinylidene)methyl]phenyl}boronic acid, C14H13BN2O3 (5). However, when the reaction was performed in EtOH at ambient temp... ...
