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A facile synthesis and asymmetric catalytic activity of new 3‐substituted chiral BINOL ligands
Author(s) -
Liu Bing,
Fang Cao,
Dong ZhiBing,
Li JinShan
Publication year - 2008
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.1350
Subject(s) - diethylzinc , chemistry , benzaldehyde , catalysis , titanium , enantioselective synthesis , stereochemistry , medicinal chemistry , combinatorial chemistry , organic chemistry
Abstract Three new chiral ligands, ( S )‐3‐(1H‐imidazol‐1‐yl)methyl‐1,1′‐binaphthol [( S )‐ 1 ], ( S )‐3‐(1H‐1,2,3‐benzotriazol‐1‐yl)methyl‐1,1′‐binaphthol [( S )‐ 2 ] and ( S )‐3‐(2H‐1,2,3‐benzotriazol‐2‐yl)methyl‐1,1′‐binaphthol [( S )‐ 3 ], were prepared by a simple method. They showed moderate catalytic properties for the asymmetric addition of diethylzinc to benzaldehyde in the presence of titanium tetraisopropoxide. Copyright © 2007 John Wiley & Sons, Ltd.