ASYMMETRIC CATALYSIS BY A NEW-TYPE OF CHIRAL BINAPHTHOL-TITANIUM COMPLEX

被引：64

作者：

KITAMOTO, D

IMMA, H

NAKAI, T

机构：

[1] TOKYO INST TECHNOL,DEPT CHEM TECHNOL,MEGURO KU,TOKYO 152,JAPAN

[2] NATL INST MAT & CHEM RES,TSUKUBA,IBARAKI 305,JAPAN

来源：

TETRAHEDRON LETTERS | 1995年 / 36卷 / 11期

关键词：

D O I：

10.1016/0040-4039(95)00134-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A new type of chiral 1,1'-bi-2-naphthol (BINOL)-derived titanium complex, prepared via complete hydrolysis of the complex formed in situ hy mixing (i-PrO)(4)Ti and (R)-BINOL followed by azeotrope, serves as an efficient and moisture-tolerable enantioselective catalyst for the glyoxylate-ene reaction (>98% eel, and shows a remarkable level of asymmetric amplification therein A mu-oxo dimer structure is proposed for the new catalyst.

引用

页码：1861 / 1864

页数：4

共 18 条

[1]

AOKI S, 1993, TETRAHEDRON, V49, P173

[2] THE HYDROLYSIS OF TITANIUM TETRAETHOXIDE [J].