Yadav, J. S. ; Subba Reddy, B. V. ; Gopala Rao, Y. ; Narsaiah, A. V. (2008) First example of Cu(OTf)2-catalyzed synthesis of quinoxalines from α-Diazoketones and aryl 1, 2-diamines Chemistry Letters, 37 (3). pp. 348-349. ISSN 0366-7022
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Official URL: http://www.jstage.jst.go.jp/article/cl/37/3/37_348...
Related URL: http://dx.doi.org/10.1246/cl.2008.348
Abstract
α-Diazoketones undergo smooth coupling with aryl 1,2-diamines in the presence of 10 mol % of copper(II) triflate to provide the corresponding 2-alkyl- or 2-aryl-quinoxalines in excellent yields with high selectivity. Rh2(OAc)4 is also found to be an equally effective catalyst for this transformation. It is a new and alternative approach for the preparation of biologically well-defined quinoxaline derivatives.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Chemical Society of Japan. |
| ID Code: | 62782 |
| Deposited On: | 24 Sep 2011 04:56 |
| Last Modified: | 24 Sep 2011 04:56 |
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