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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 |
Issue Date: | 6-Mar-2017 | Source: | Angewandte chemie international edition, 6 Mar. 2017, v. 56, no. 11, p. 3074-3079 | 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. | Keywords: | Chelates Gold Isomerization Ligand effects Structure elucidation |
Publisher: | Wiley-VCH | Journal: | Angewandte chemie international edition | ISSN: | 1433-7851 | EISSN: | 1521-3773 | DOI: | 10.1002/anie.201612243 | Rights: | © 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim This is the peer reviewed version of the following article: J.-F. Cui, H.-M. Ko, K.-P. Shing, J.-R. Deng, N. C.-H. Lai, M.-K. Wong, Angew. Chem. Int. Ed. 2017, 56, 3074, which has been published in final form at https://doi.org/10.1002/anie.201612243. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. |
| Appears in Collections: | Journal/Magazine Article |
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| a0589-n12_Manuscript (2).pdf | Pre-Published version | 1.06 MB | Adobe PDF | View/Open |
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