Selective reactions (hydrolysis or debenzotriazolation) of bis(benzotriazol-1-yl) methylimine by metal(II) salts

Add time:08/07/2019    Source:sciencedirect.com

The reactions of bis(benzotriazol-1-yl)methylimine (BBTMI) with acetates and chlorides of CuII, NiII, CoII, ZnII, CdII and MnII were studied in ethanol. While the metal acetates induced debenzotriazolation to form 1-cyanobenzotriazole and benzotriazole, the chlorides induced hydrolysis of BBTMI to form 1,1′bis(benzotriazol-1-yl)carbonyl. These intermediates subsequently for med the mixed ligand complexes [1-cyanobenzotriazolediacetato M(II)] and [benzotriazolatochloro M(II)] respectively. The chemo-selectivity of the reactions could be attributed to a facile cleavage of one of the MO bonds of the bidentately bound acetates and to the acidic nature in the case of the chloride solution.

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