A Facile Method for the Synthesis of Pyrazolyl and Pyrazolinyl Carbazoles

Y.      Zulykama; R.      Nagarajan; P.   T.   Perumal

doi:10.2174/1570178054640831

Abstract

Synthesis of pyrazolylcarbazoles and pyrazolinylcarbazoles is reported. Phenylhydrazones of acylcarbazoles furnished pyrazolylcarbazoles under Vilsmeier conditions. Carbazolylchalcones on treatment with hydrazine in acetic acid furnished pyrazolinylcarbazoles.

Keywords: heteroarylcarbazoles, vilsmeier reaction, acyl carbazoles, carbazolylchalcones, pyrazolylcarbazoles, pyrazolinylcarbazoles

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Letters in Organic Chemistry

Title: A Facile Method for the Synthesis of Pyrazolyl and Pyrazolinyl Carbazoles

Volume: 2 Issue: 6

Author(s): Y. Zulykama, R. Nagarajan and P. T. Perumal

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Keywords: heteroarylcarbazoles, vilsmeier reaction, acyl carbazoles, carbazolylchalcones, pyrazolylcarbazoles, pyrazolinylcarbazoles

Abstract: Synthesis of pyrazolylcarbazoles and pyrazolinylcarbazoles is reported. Phenylhydrazones of acylcarbazoles furnished pyrazolylcarbazoles under Vilsmeier conditions. Carbazolylchalcones on treatment with hydrazine in acetic acid furnished pyrazolinylcarbazoles.

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Zulykama Y., Nagarajan R. and Perumal T. P., A Facile Method for the Synthesis of Pyrazolyl and Pyrazolinyl Carbazoles, Letters in Organic Chemistry 2005; 2 (6) . https://dx.doi.org/10.2174/1570178054640831