25-May-2013
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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.45B [2006] >
IJC-B Vol.45B(04) [April 2006] >
| Title: | Synthesis of pyrimido annelatedcarbazoles and 2-methyl-6-oxo-bisindolo[1,2-b :5,4-b' ] cyclohexanones using 2-hydroxymethylene-1-oxo-1,2,3,4-tetrahydrocarbazoles |
| Authors: | Sangeetha, V
Prasad, K J Rajendra |
| Keywords: | Tetrahydrocarbazoles
cyclohexanones
guanidine nitrate
Japp-Klingemann conditions
cyclisation
Kent' s reagent |
| Issue Date: | Apr-2006 |
| Publisher: | NISCAIR-CSIR, India |
| IPC Code: | Int.Cl.7 C 07 D |
| Abstract: | Tr eatment of 2-hydro xyme thylene-1-oxo-1, 2,3, 4-
tetrahydrocarbazoles 1a-d with guanidine nitrate affords 2-amino-
4-hydroxy-1,4,5,6-tetrahydropyrimido[4,5- ]carbazoles 2a-d. In
anothe r re ac tion, 2-hydro xyme thylene-1-oxo-1, 2,3, 4-
tetrahydroc arbazoles 1a-d are treated with diazotized -toluidine
under Japp-Klingemann conditions to furnish the respec ve
4'-methyl-1-oxo-2-phenylhydrazono-1,2,3,4-tetrahydrocarbazoles
3a-d, which upon cyclisation using Kent’s reagent (CH3COOH :
HCl, 4:1) yield the corresponding 6,12-dihydro-2-methy xobisindolo[
1,2- :5,4-b' ]cyclohexanones 5a-d. |
| Page(s): | 1028-1033 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Source: | IJC-B Vol.45B(04) [April 2006]
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