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IJC-B Vol.45B(08) [August 2006] >

Title: Syntheses of novel derivatives of 2-acetylfuro[2,3-]carbazoles, benzo[1,2-b]-1,4-thiazepino[2,3-]carbazoles and 1-acetyloxycarbazole-2-carbaldehydes
Authors: Sangeetha, V
Prasad, K J Rajendra
Keywords: 1-hydroxycarbazole-2-carbaldehydes
2-acetylfuro carbazoles
benzo carbazoles
phenyl oxopyranocarbazoles
Issue Date: Aug-2006
Publisher: CSIR
IPC CodeInt.Cl.8 C07D
Abstract: An elegant one pot syntheses of the titled compounds 3a-d, 4a-d and 6a-d have been presented starting from 1-hydroxycarbazole-2-carbaldehydes 2a-d in good yields. Treatment of 1-hydroxycarbazole-2-carbaldehydes 2a-d with chloroacetone and with o-aminothiophenol have afforded the novel 2-acetylfuro[2,3-]carbazoles 3a-d and benzo-[1,2-b]-1,4-thiazepino[2,3-]carbazoles 4a-d respectively. Further carbazoles 2a-d are treated with phenyl acetic acid in an attempt to synthesize 3-phenyl-2-oxopyrano[2,3-]-carbazoles 5a-d, but the reaction did not proceed in the anticipated direction and only acetyl derivatives 6a-d are obtained. All the products thus obtained from these reactions are well characterized by spectroscopic and analytical data.
Page(s): 1951-1954
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.45B(08) [August 2006]

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