Titanium(IV) as an essential promoter in the asymmetric addition of diethylzinc to aldehydes catalyzed by aminonaphthol and imme ligands based on 3-substituted binaphthol

被引：18
|
作者：
Jiang, Fu-Yong [1 ]
Liu, Bing [1 ]
Dong, Zhi-Bing [1 ]
Li, Jin-Shan [1 ]
机构：
[1] Nankai Univ, State Key lab Elemento Organ Chem, Tianjin 300071, Peoples R China
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2007年 / 692卷 / 20期
基金：
中国国家自然科学基金;
关键词：
reductive amination; BINOL; diethylzinc; titanium tetraisopropoxide;
D O I：
10.1016/j.jorganchem.2007.07.003
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
By using indirect reductive amination and condensation, two types of aminonaphthol and imine ligands based on 3-substituted binaphthol have been synthesized, respectively. When their catalytic effectiveness was tested by the ethylation of aldehydes with diethylzinc, titanium tetraisopropoxide was found essential to get good results with ee up to 90%. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：4377 / 4380
页数：4
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