30385-46-7Relevant academic research and scientific papers
Chiral trivalent gold complex as well as preparation method and application thereof
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Paragraph 0245-0251, (2018/04/21)
The invention provides a chiral trivalent gold complex. The chiral trivalent gold complex consists of two carbon-gold covalent bonds, an oxygen-gold covalent bond and a nitrogen-gold coordination bond, has a chiral binaphthol and oxazoline ligand framework or a chiral binaphthol and ortho-substituted pyridine ligand framework and has a compound shown in a general formula I or general formula II and a racemate and optical isomer shown in a general formula I or a general formula II.
C,O-Chelated BINOL/Gold(III) Complexes: Synthesis and Catalysis with Tunable Product Profiles
Cui, Jian-Fang,Ko, Hok-Ming,Shing, Ka-Pan,Deng, Jie-Ren,Lai, Nathanael Chun-Him,Wong, Man-Kin
, p. 3074 - 3079 (2017/03/13)
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.
