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Title: Synthesis of some pyrazino, pyrimido and mercaptopyrimido annelated carbazoles using 2-hydroxymethylene-1- oxo-1,2,3,4- tetrahydrocarbazoles
Authors: Sangeetha, V
Prasad, K J Rajendra
Keywords: 1-oxo-2-hydroxymethylene-1,2,3,4-tetrahydrocarbazole;4,5-dihydro-2H-pyrazino[3,4-a]carbazoles;2-cyano-1-hydroxycarbazoles;2,4-dihydroxy-1,4,5,6-tetra-hydropyrimido[4,5-a]carbazoles;4-hydroxy-2-mercapto-1,4,5,6-tetrahydropyrimido- [4,5-a]carbazoles
Issue Date: Jan-2007
Publisher: CSIR
IPC Code: Int. Cl.⁸ C07D
Abstract: Treatment of 1-oxo-2-hydroxymethylene-1,2,3,4- tetrahydrocarbazole 1 with hydrazine hydrate, hydroxylamine hydrochloride, urea and thiourea in the presence of gl. acetic acid afforded the novel carbazole derivatives namely 4,5-dihydro-2H-pyrazino [3,4-a] carbazoles 2, 2-cyano-1- hydroxycarbazoles 3, 2,4-dihydroxy-1,4,5,6- tetrahydropyrimido[4,5-a]carbazoles 4 and 4-hydroxy-2-mercapto-1,4,5,6- tetrahydropyrimido- [4,5-a]carbazoles 5 respectively.
Page(s): 135-140
ISSN: 0376-4699
Appears in Collections:IJC-B Vol.46B(01) [January 2007]

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