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Chiral (pyrrolidine salen)Mn(III) complexes 1 with an N-benzoyl group and 2 with an N-isonicotinoyl group as well as the corresponding N-methyl (3) and N-benzyl (4) pyridinium salts of 2 were synthesized. The catalytic properties of 1–4 and 2 with excess CH 3 I were explored to figure out the influence of the internal pyridinium salt in the catalyst on asymmetric epoxidation of substituted...
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