Peruncheralathana, S. ; Khan, T. A. ; Ila, H. ; Junjappa, H. (2004) α-Oxoketene dithioacetals mediated heteroaromatic annulation protocol for benzoheterocycles: an efficient regiocontrolled synthesis of highly substituted and annulated indazoles Tetrahedron, 60 (15). pp. 3457-3464. ISSN 0040-4020
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00404...
Related URL: http://dx.doi.org/10.1016/j.tet.2004.02.029
Abstract
An efficient regiocontrolled synthesis of highly substituted and annulated indazoles involving base induced addition-elimination of 1,3-diphenyl-5-cyanomethylpyrazole to a variety of acyclic and cyclic α-oxoketene, followed by acid assisted cycloaromatization of the resulting conjugate adducts has been reported.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | α-oxoketene Dithioacetals; Heteroaromatic Annulation; Benzoheterocycles; Indazoles |
ID Code: | 15284 |
Deposited On: | 13 Nov 2010 13:00 |
Last Modified: | 03 Jun 2011 04:46 |
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