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Paper | Regular issue | Vol 26, No. 5, 1987, pp.1257-1262
Published online, 1st January, 1970
DOI: 10.3987/R-1987-05-1257
Addition of Phthalimidonitrene to Substituted Indoles

Perumal Raja Kumar

*Department of Chemistry, University of Madras, Madras 600 025, India


The aziridine 2a obtained by the addition of phthalimidonitrene to N-phenylsulphonylindole was treated with methanolic potassium hydroxide to give desulphonated indole and quinazoline. The aziridine 2b and 2c derived from phthalimidonitrene and 2-methylindole or 2-phenylindole were treated with dimsyl anion to give 2-methylquinazoline and 2-phenylquinazoline. However the nitrene adducts 2d and 2e derived from 1,2,3,4-tetrahydrocarbazole and 1-oxo-1,2,3,4-tetrahydrocarbazole afford carbazole and 1-hydroxycarbazole under similar conditions. Hydrazinolysis of the nitrene adducts-2a, b, c, d and e regenerated the parent indole.