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ChemInform Abstract: Magnesium(II)—Binaphtholate as a Practical Chiral Catalyst for the Enantioselective Direct Mannich-Type Reaction with Malonates.

✍ Scribed by Manabu Hatano; Takahiro Horibe; Kazuaki Ishihara

Publisher: John Wiley and Sons
Year: 2010
Weight: 40 KB
Volume: 41
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201050189

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✦ Synopsis

Abstract

The method renders possible the synthesis of various β‐aminocarbonyl units as chiral building blocks.

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## Abstract **Mild mannered!** A highly diastereo‐ and enantioselective Mannich‐type reaction of glycine Schiff base **1** has been developed by using the __N,N′__‐dioxide **L**‐Cu^II^ complex as a catalyst. Various optically active __anti‐__α,β‐diamino acid esters were obtained in good yields with