Octahedra-based molecular sieve aluminoborate (PKU-1) as solid acid for heterogeneously catalyzed Strecker reaction
2015
Abstract An aluminoborate (PKU-1) with octahedron-based framework was found to be a highly efficient solid acid catalyst for the rapid and convenient synthesis of α-aminonitriles from imines and TMSCN under mild reaction conditions. The catalytic active sites are related to the borate hydroxyl groups in the 18-ring structural channels. The borate hydroxyl groups play a critical role as Bronsted acid to protonate imine and activate TMSCN, thus providing the imine intermediate and producing CN anions, respectively.
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