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Catalytic asymmetric benzylation of a dissymmetric tert‐butylglycinate ketimine, incorporating 1‐naphthyl and phenyl groups as the Schiff base substituents, under phase‐transfer conditions was investigated. It was interesting to note that the sense of asymmetric induction of the alkylation of Z‐imine stereoisomer is opposite to that of the corresponding E stereoisomer with a similar degree of enantioselectivity...
Water mediates synthesis of novel hindered Schiff bases via transmination protocol. The feature of the procedure is that it allows both tuning of steric and electronic factors of the substituents and mono-imination of vicinal diamines, which potentially facilitates one-pot approach to unsymmetrical metal ligands.
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