Chemistry of Heterocyclic Compounds p. 382 - 385 (1982)
Update date:2022-07-30
Topics:
Samsoniya, Sh. A.
Kadzhrishvili, D. O.
Gordeev, E. N.
Zhigachev, V. E.
Kurkovskaya, L. N.
Suvorov, N. N.
Ethyl pyruvate 1-acetyl-5-indolinylhydrazone was obtained by diazotization of 1-acetyl-5-aminoindoline with subsequent reduction of the diazonium salt and condensation of the hydrazine with ethyl pyruvate.A mixture of hydrogenated derivatives of linear and angular pyrroloindoles is formed as a result of cyclization of the hydrazone in polyphosphoric acid esters.Subsequent hydrolysis, decarboxylation, and dehydrogenation lead to 1H,5H-pyrrolo<2,3-f>indole and 3H,6H-pyrrolo<3,2-e>indole.
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Doi:10.1021/ja00373a019
(1982)Doi:10.1039/b101320n
(2001)Doi:10.1021/ol010089t
(2001)Doi:10.1055/s-1983-30272
(1983)Doi:10.1021/ja01125a508
(1952)Doi:10.1007/BF00476813
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