Research on the design, synthesis, and catalytic activity of chiral N-heterocyclic carbene ligand-metal complexes

Kensuke Usui, Takuya Yoshida, Masahisa Nakada*

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

New chiral C2 symmetric N-heterocyclic carbene (NHC) ligands with a binaphthyl backbone have been synthesized. X-ray crystallographic analysis of the new NHC-AuCl complex revealed that the phenyl groups of the binaphthyl backbone sterically regulated the direction of the nitrogen substituents of the imidazolylidene which would induce enantioselectivity in reactions. The new cationic NHC-Au(I) complexes efficiently catalyzed the cyclization of a 1,6-ene-yne and the intermediate of the cyclization was trapped by MeOH to afford the final product in high yields with up to 44% ee.

本文言語English
ページ(範囲)107-113
ページ数7
ジャーナルTetrahedron Asymmetry
27
2-3
DOI
出版ステータスPublished - 2016 2 15

ASJC Scopus subject areas

  • 触媒
  • 物理化学および理論化学
  • 有機化学
  • 無機化学

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