Vijaykumar, Gonela ; Jose, Anex ; Vardhanapu, Pavan K. ; P, Sreejyothi ; Mandal, Swadhin K. (2017) Abnormal-NHC-Supported Nickel Catalysts for Hydroheteroarylation of Vinylarenes Organometallics, 36 (24). pp. 4753-4758. ISSN 0276-7333
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Official URL: http://doi.org/10.1021/acs.organomet.7b00628
Related URL: http://dx.doi.org/10.1021/acs.organomet.7b00628
Abstract
Herein we report the hydroheteroarylation of vinylarenes with benzoxazole in the presence of a free abnormal N-heterocyclic carbene and Ni(COD)2, resulting in 1,1-diarylethane products exclusively. In an attempt to understand the mechanism of this catalytic reaction, two abnormal-NHC (aNHC)-coordinated Ni(II) cyclooctenyl complexes were isolated and their solid-state structures were determined by X-ray crystallographic studies. These Ni(II) cyclooctenyl complexes act as active catalyst precursors to generate in situ aNHC-Ni(0) species, which undergo oxidative addition with heteroarene to form Ni(II) hydride intermediates.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 118287 |
| Deposited On: | 19 May 2021 18:31 |
| Last Modified: | 19 May 2021 18:31 |
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