Gold(I) Complexes of Conformationally Constricted Chiral Ferrocenyl Phosphines

被引：27

作者：

Barreiro, Elena M. ^{[2
]}

Broggini, Diego F. D. ^{[1
]}

Adrio, Luis A. ^{[2
]}

White, Andrew J. P. ^{[2
]}

Schwenk, Rino ^{[1
]}

Togni, Antonio ^{[1
]}

Hii, King Kuok ^{[2
]}

机构：

[1] Swiss Fed Inst Technol, Swiss Fed Inst Technol, Dept Chem & Appl Biosci, CH-8093 Zurich, Switzerland

[2] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

来源：

ORGANOMETALLICS | 2012年 / 31卷 / 09期

基金：

瑞士国家科学基金会;

关键词：

TRANSITION-METAL-COMPLEXES; ENANTIOSELECTIVE INTRAMOLECULAR HYDROAMINATION; GOLD(I)-CATALYZED ALDOL REACTION; ASYMMETRIC CATALYSIS; H BONDS; LIGANDS; ALLENES; CYCLIZATION; HYDROALKOXYLATION; DERIVATIVES;

D O I：

10.1021/om300222k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation of two new chiral, enantiopure, and conformationally constrained phosphocin and 1,5-diphosphocin, incorporating two ferrocenyl units, is described. The gold(I) chloride complexes of these ligands and (S)-(R)-PPF-OMe were prepared, and their structures, in solution and solid states, are compared. Abstraction of the chloride anion by the addition of silver salt of either toluenesulfonate or chiral BINOL-phosphates generates active catalysts for the intramolecular cyclization of 6-methyl-1,1-diphenylhepta-4,5-dien-1-ol, where up to 47% ee can be obtained. Match and mismatch effects between chiral ligands and counteranions are highlighted.

引用

页码：3745 / 3754

页数：10

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