Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66095
Title: C,O-Chelated BINOL/Gold(III) complexes : synthesis and catalysis with tunable product profiles
Authors: Cui, JF
Ko, HM
Shing, KP
Deng, J
Lai, CHN
Wong, MK 
Keywords: Chelates
Gold
Isomerization
Ligand effects
Structure elucidation
Issue Date: 2017
Publisher: Wiley-VCH
Source: Angewandte chemie international edition, 2017, v. 56, no. 11, p. 3074-3079 How to cite?
Journal: Angewandte chemie international edition 
Abstract: Unprecedented stable BINOL/gold(III) complexes, adopting a novel C,O-chelation mode, were synthesized by a modular approach through combination of 1,1′-binaphthalene-2,2′-diols (BINOLs) and cyclometalated gold(III) dichloride complexes [(C^N)AuCl2]. X-ray crystallographic analysis revealed that the bidentate BINOL ligands tautomerized and bonded to the AuIII atom through C,O-chelation to form a five-membered ring instead of the conventional O,O′-chelation giving a seven-membered ring. These gold(III) complexes catalyzed acetalization/cycloisomerization and carboalkoxylation of ortho-alkynylbenzaldehydes with trialkyl orthoformates.
URI: http://hdl.handle.net/10397/66095
ISSN: 1433-7851
EISSN: 1521-3773
DOI: 10.1002/anie.201612243
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