Synthesis of a new chiral C2-symmetric NHC-AuCl complex

Naoya Okitsu, Takuya Yoshida, Kensuke Usui, Masahisa Nakada*

*この研究の対応する著者

研究成果査読

6 被引用数 (Scopus)

抄録

A New chiral C2 symmetric NHC ligand with two binaphthyl units has been synthesized. The new NHC ligand features two seven-membered rings that link the imidazolylidene with the binaphthyl units. X-Ray crystallographic analysis of the new NHC-AuCl complex indicates that the Au-Cl bond is located between the phenyl groups of the binaphthyl units and suggests that this arrangement could induce enantioselectivity in reactions. Indeed, catalytic asymmetric ene-yne cyclization of 2b in the presence of a catalytic amount (5 mol%) of cationic complex of 13 quantitatively afforded the cyclized product with 78% ee.

本文言語English
ページ(範囲)720-732
ページ数13
ジャーナルHeterocycles
92
4
DOI
出版ステータスPublished - 2016

ASJC Scopus subject areas

  • 分析化学
  • 薬理学
  • 有機化学

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