H3PW12O40 catalyzed new and multicomponent one-pot synthesis of 6-benzo[a]phenazin-5-ol derivatives of highly functionalized oxazoles via Robinson-Gabriel-type reaction

A facile and efficient procedure is developed for H 3 PW 12 O 40 catalyzed new and one-pot synthesis of highly functionalized oxazoles linked to benzo[a]phenazin derivatives using phenylenediamine derivatives, 2-hydroxy-1,4-naphthoquinone, arylglyoxals and acetonitrile via a multicomponent tandem cy...

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Published inInorganic and nano-metal chemistry Vol. ahead-of-print; no. ahead-of-print; pp. 1 - 15
Main Authors Hoseinpour, Mahdieh, Mohebat, Razieh, Nateghi, Mohammad Reza, Kalantari Fotooh, Forough
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 2023
Taylor & Francis Ltd
Subjects
Acetonitrile
arylglyoxals monohydrate
benzo[a]phenazin-5-ol
Chemical synthesis
heteropoly acids
Multicomponent reactions
oxazole derivatives
Phenylenediamine
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ISSN2470-1556
2470-1564
DOI10.1080/24701556.2021.1974476

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Summary:A facile and efficient procedure is developed for H 3 PW 12 O 40 catalyzed new and one-pot synthesis of highly functionalized oxazoles linked to benzo[a]phenazin derivatives using phenylenediamine derivatives, 2-hydroxy-1,4-naphthoquinone, arylglyoxals and acetonitrile via a multicomponent tandem cyclization Robinson-Gabriel reaction in a very short time and easy workup without any byproduct. Acetonitrile served not only as a solvent but also as the substrate in the reaction.
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ISSN:2470-1556
2470-1564
DOI:10.1080/24701556.2021.1974476