Kumar, U. K. Syam ; Patra, Pranab K. ; Ila, H. ; Junjappa, H. (1998) Benzoannelation of 2-methylindole via 1-N-carboxy-2-methylindole dianion: a direct regiospecific route to substituted and annelated carbazoles Tetrahedron Letters, 39 (14). pp. 2029-2032. ISSN 0040-4039
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00404...
Related URL: http://dx.doi.org/10.1016/S0040-4039(98)00164-6
Abstract
A facile general route for substituted and annelated N-H-carbazoles 6 has been developed by regiospecific 1,2-addition of 1-N-carboxy-2-methylindole dianion 3 to acyclic and cyclic α-oxoketene dithioacetals 4 followed by cycloaromatization in the presence of H3PO4.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 15306 |
| Deposited On: | 13 Nov 2010 12:58 |
| Last Modified: | 03 Jun 2011 04:58 |
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