Strategies for constructing diverse chiral environments in multimetallic bifunctional asymmetric catalysis

Masakatsu Shibasaki, Shigeki Matsunaga, Naoya Kumagai

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

Recent advances from our group in the design and applications of multimetallic bifunctional asymmetric catalysts are described. Suitable design of chiral ligands and selection of metals were important to realize cooperative bimetallic catalysis. In this account, our strategies for constructing flexible and diverse chiral environments in multimetallic complexes for the rapid optimization of targeted reactions, such as tertiary nitroaldol kinetic resolution, cyclopropanation of electron-deficient olefins, cyano- ethoxycarbonylation of aldehydes, direct Mannich-type reactions, the nitro-Mannich reaction, the anti-selective nitroaldol reaction, and animation, are discussed in detail. 1 Introduction 2 Heterobimetallic Rare-Earth-Alkali Metal-BINOL Complexes 2.1 Background 2.2 Catalytic Kinetic Resolution of Tertiary Nitroaldols 2.3 Catalytic Asymmetric Cyclopropanation of Enones 2.4 Catalytic Asymmetric Cyano-ethoxycarbonylation 3 La Aryloxide/Li Aryloxide/pybox Complexes for Direct Catalytic Asymmetric Mannich-type Reactions 4 Heterobimetallic Transition Metal/Rare-Earth Metal/Dinu-cleating Schiff Base Complexes 4.1 syn-Selective Nitro-Mannich-type Reaction 4.2 anti-Selective Nitroaldol Reaction 5 Homobimetallic Nickel/Dinucleating Schiff Base Complex 6 Rare-Earth Metal/Amide Complexes for Catalytic Asymmetric Amination 7 Summary.

Original languageEnglish
Pages (from-to)1583-1602
Number of pages20
JournalSynlett
Issue number11
DOIs
Publication statusPublished - 2008 Jul 1
Externally publishedYes

Keywords

  • Asymmetric catalysis
  • Asymmetric synthesis
  • Bifunctional catalysis
  • Lewis acids
  • Rare-earth metals

ASJC Scopus subject areas

  • Organic Chemistry

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