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 |
巻 | 92 |
号 | 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