Yadav, J. S. ; Reddy, B. V. S. ; Baishya, Gakul ; Reddy, K. V. ; Narsaiah, A. V. (2005) Conjugate addition of indoles to α,β-unsaturated ketones using Cu(OTf)2 immobilized in ionic liquids Tetrahedron, 61 (40). pp. 9541-9544. ISSN 0040-4020
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.tet.2005.07.095
Abstract
Indoles undergo smooth conjugate addition with α,β-unsaturated ketones in the presence of 10 mol% copper(II) triflate immobilized in air and moisture stable [bmim]BF4 ionic liquid under mild conditions to afford the corresponding conjugate addition products in high to quantitative yields. The recovery of Cu(OTf)2 is facilitated by the ionic liquid. The recovered catalyst was reused four to five times with consistent activity.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Ionic Liquids (ILs); α,β-unsaturated Ketones; Cu(OTf)2; 3-substituted Indole Derivatives |
| ID Code: | 58896 |
| Deposited On: | 02 Sep 2011 03:21 |
| Last Modified: | 02 Sep 2011 03:21 |
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