Santra, Sourav Kumar ; Banerjee, Arghya ; Patel, Bhisma K. (2014) 2,3-Diarylquinoxaline directed mono ortho-aroylation via cross-dehydrogenative coupling using aromatic aldehydes or alkylbenzenes as aroyl surrogate Tetrahedron, 70 (14). pp. 2422-2430. ISSN 0040-4020
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Official URL: https://www.sciencedirect.com/science/article/pii/...
Related URL: http://dx.doi.org/10.1016/j.tet.2014.02.034
Abstract
2,3-Diarylquinoxaline directed mono ortho-aroylation protocol has been developed using aromatic aldehydes or alkybenzenes as aroyl surrogates. Out of the four available ortho sp2 C–H bonds in the two aryl rings of 2,3-diarylquinoxaline one of the C–H bond is selectively ortho-aroylated. The reaction proceeds via the aroyl radical path in the case of aromatic aldehydes while the alkylbenzenes follow either an aroyl radical or a benzyl radical path. Varieties of functional groups present as substituents in 2,3-diarylquinoxalines, aromatic aldehydes and alkylbenzenes are tolerated under the present reaction conditions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | C–H Activation; Cross-dehydrogenative Coupling; 2,3-Diarylquinoxaline; Pd-Catalysis |
| ID Code: | 113873 |
| Deposited On: | 02 May 2018 04:49 |
| Last Modified: | 02 May 2018 04:49 |
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