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|Title:||Synthesis of 3-phenyl-4-oxopyrano[2,3-]carbazoles (indoloisoflavones)|
Prasad, K J Rajendra
|IPC Code:||Int.Cl.7 C 07 D 209/04|
|Abstract:||Phenacylation of 1-hydroxycarbazoles 1 with phenylacetic acid in the presence of zinc chloride and phosphorous oxychloride afforded 2-phenacyl- and 2,4-diphenacyl- 1-hydroxycarbazoles (2 and 3). Further, 2-phenacyl-1-hydroxycarbazoles 2 on Claisen condensation reaction followed by cyclisation with H+/EtOH yielded 3-phenyl-4-oxopyrano[2,3-]carbazoles 4.|
|Appears in Collections:||IJC-B Vol.44B(05) [May 2005]|
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