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Title: Syntheses of novel derivatives of 2-acetylfuro[2,3-<i style=""><img src='/image/spc_char/alpha.gif' border=0></i>]carbazoles, benzo[1,2-<i style="">b</i>]-1,4-thiazepino[2,3-<i style=""><img src='/image/spc_char/alpha.gif' border=0></i>]carbazoles and 1-acetyloxycarbazole-2-carbaldehydes
Authors: Sangeetha, V
Prasad, K J Rajendra
Keywords: 1-hydroxycarbazole-2-carbaldehydes
<i style="">o</i>-aminothio­phenol
2-acetylfuro carbazoles
benzo carbazoles
phenyl oxopyranocarbazoles
Issue Date: Aug-2006
Publisher: CSIR
Series/Report no.: Int.Cl.<sup>8</sup> C07D
Abstract: An elegant one pot syntheses of the titled compounds <b style="">3a-d</b>, <b style="">4a-d</b> and <b style="">6a-d</b> have been presented starting from 1-hydroxycarbazole-2-carbaldehydes <b style="">2a-d</b> in good yields. Treatment of 1-hydroxycarbazole-2-carbaldehydes <b style="">2a-d</b> with chloroacetone and with <i style="">o</i>-aminothiophenol have afforded the novel 2-acetylfuro[2,3-<i style=""><img src='/image/spc_char/alpha.gif' border=0></i>]carbazoles <b style="">3a-d </b>and benzo-[1,2-<i style="">b</i>]-1,4-thiazepino[2,3-<i style=""><img src='/image/spc_char/alpha.gif' border=0></i>]carbazoles <b style="">4a-d </b>respectively. Further carbazoles <b style="">2a-d</b> are treated with phenyl acetic acid in an attempt to synthesize 3-phenyl-2-oxopyrano[2,3-<i style=""><img src='/image/spc_char/alpha.gif' border=0></i>]-carbazoles <b style="">5a-d, </b>but the reaction did not proceed in the anticipated direction and only acetyl derivatives <b style="">6a-d</b> are obtained. All the products thus obtained from these reactions are well characterized by spectroscopic and analytical data.
Description: 1951-1954
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.45B(08) [August 2006]

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