Journal of Heterocyclic Chemistry

The chemistry of carbazole. VI. On the formation of N??ethylcarbazoles in the cadogan reaction

Y Tsunashima, M Kuroki

Index: Tsunashima, Yutaka; Kuroki, Masatane Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 315 - 318

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Citation Number: 13

Abstract

Abstract Reaction of 2′, 6-dimethyl-2-nitrobiphenyl with triethyl phosphite gave 4, 5- dimethyl-9-ethylcarbazole besides 4, 5-dimethylcarbazole. In this reaction, 4, 5- dimethylcarbazole was ethylated by triethyl N-(2′, 6-dimethybiphenyl-2-yl) phosphorimidate and diethyl N-(2′, 6-dimethylbiphenyl-2-yl) phosphoramidate, which arose from a nitrene-intermediate and triethyl phosphite. Analogous ethylations of ...