Sarkar, Mithun ; Bera, Jitendra K. (2014) Pd-catalyzed regioselective oxidative C–H functionalization of substituted imidazo[1,2-a]quinoline: structural characterization of binuclear cyclometalated intermediates Proceedings of the National Academy of Sciences, India Section A: Physical Sciences, 84 (2). pp. 227-234. ISSN 0369-8203
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Official URL: http://link.springer.com/article/10.1007/s40010-01...
Related URL: http://dx.doi.org/10.1007/s40010-014-0136-6
Abstract
Reaction of 4-phenylimidazo[1,2-a]quinoline with one and more than two equivalents of PhI(OAc)2 afforded regioselective mono- and bis-acetoxylated products respectively in presence of catalytic amount of Pd(OAc)2. Stoichiometric reaction between imidazo–quinoline ligand and Pd(OAc)2 gave an acetate bridged binuclear cyclometalated complex 1. X-ray structure confirmed selective cyclometalation at ortho position of the phenyl ring. Furthermore, a formamidinate analogue, 2 is obtained by replacing the bridging acetates in 1.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| Keywords: | Regioselective; C–H Functionalization; Bimetallic Catalysis; Oxidative Addition; Reductive Elimination; Cyclometalation |
| ID Code: | 99769 |
| Deposited On: | 27 Nov 2016 13:29 |
| Last Modified: | 27 Nov 2016 13:29 |
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