Yadav, J. S. ; Subba Reddy, B. V. ; Purnima, K. V. ; Jhansi, S. ; Nagaiah, K. ; Lingaiah, N. (2008) The silver salt of 12-tungstophosphoric acid: a mild and selective catalyst for the synthesis of β-ketoesters via C-H insertion Catalysis Communications, 9 (14). pp. 2361-2364. ISSN 1566-7367
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.catcom.2008.05.032
Abstract
Aldehydes undergo smooth coupling with ethyl diazoacetate in the presence of 5 mol% silver substituted tungstophosphoric acid (AgTPA) under mild conditions to furnish β-ketoesters in high yields and with high selectivity via C-H insertion. This method is very useful for the preparation of β-ketoesters from both electron-rich as well as electron-deficient aromatic aldehydes. The catalyst can be recycled and reused for three to five subsequent runs with a gradual decrease of activity.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Ag-heteropoly Acid; Carbene Insertion; Ethyl Diazoacetate; β-ketoesters |
ID Code: | 59581 |
Deposited On: | 07 Sep 2011 05:49 |
Last Modified: | 07 Sep 2011 05:49 |
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