High-Molecular-Weight Polyquinoxaline-Based Helically Chiral Phosphine (PQXphos) as Chirality-Switchable, Reusable, and Highly Enantioselective Monodentate Ligand in Catalytic Asymmetric Hydrosilylation of Styrenes

被引：225

作者：

Yamamoto, Takeshi ^{[1
]}

Yamada, Tetsuya ^{[1
]}

Nagata, Yuuya ^{[1
]}

Suginome, Michinori ^{[1
,2
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Synthet Chem & Biol Chem, Nishikyo Ku, Kyoto 6158510, Japan

[2] Japan Sci & Technol Agcy, CREST, Nishikyo Ku, Kyoto 6158510, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 23期

关键词：

SCREW-SENSE; LIVING POLYMERIZATION; POLYMERS; COMPLEXES; POLY(QUINOXALINE-2,3-DIYL)S;

D O I：

10.1021/ja102428q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A polyquinoxaline-based helical polymer ligand bearing both helical-sense-determining chiral side chains and coordinating diarylphosphino side chains exhibits solvent-dependent formation of P- or M-helical structures, with which either the S- or R-hydrosilylation product was obtained with high (>93% enantiomeric excess) enantioselectivities.

引用

页码：7899 / +

页数：4