Sonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite

Co3O4/NiO@GQDs@SO3H nanocatalyst has been used as an effective catalyst for the preparation of dihydropyrano[3,2-c]chromenes and biscoumarins under ultrasonic irradiations in ethanol. The catalyst has been characterized by FT-IR, XRD, SEM, EDS, BET, TGA, XPS and VSM. Atom economy, reusable catalyst,...

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Autores principales: Hossein Shahbazi-Alavi, Ali Kareem Abbas, Javad Safaei-Ghomi
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Lenguaje:EN
Publicado: Taylor & Francis Group 2020
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Acceso en línea:https://doaj.org/article/9d149fb0f5c2472085c90af54ba2fba3
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spelling oai:doaj.org-article:9d149fb0f5c2472085c90af54ba2fba32021-12-02T13:07:17ZSonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite2055-033210.1080/20550324.2020.1776492https://doaj.org/article/9d149fb0f5c2472085c90af54ba2fba32020-04-01T00:00:00Zhttp://dx.doi.org/10.1080/20550324.2020.1776492https://doaj.org/toc/2055-0332Co3O4/NiO@GQDs@SO3H nanocatalyst has been used as an effective catalyst for the preparation of dihydropyrano[3,2-c]chromenes and biscoumarins under ultrasonic irradiations in ethanol. The catalyst has been characterized by FT-IR, XRD, SEM, EDS, BET, TGA, XPS and VSM. Atom economy, reusable catalyst, low catalyst loading, applicability to a wide range of substrates, high yields of products, and applying the sonochemical methodology as an efficient method and innocuous means of activation in synthetic chemistry for the preparation of medicinally privileged heterocyclic molecules are some of the substantial features of this method. The present catalytic procedure is extensible to a wide diversity of substrates for the synthesis of a variety-oriented library of pyranochromene and biscoumarins. The ultrasound approach decreases times, increases yields of products by creating the activation energy in micro surroundings. Meanwhile, this recoverable catalyst will provide a regular platform for heterogeneous catalysis, green chemistry, and environmentally benign protocols in the near future.Hossein Shahbazi-AlaviAli Kareem AbbasJavad Safaei-GhomiTaylor & Francis Grouparticlenanocompositeone-potultrasonicchromenebiscoumarinsnanoanalysisMaterials of engineering and construction. Mechanics of materialsTA401-492Polymers and polymer manufactureTP1080-1185ENNanocomposites, Vol 6, Iss 2, Pp 56-65 (2020)
institution DOAJ
collection DOAJ
language EN
topic nanocomposite
one-pot
ultrasonic
chromene
biscoumarins
nanoanalysis
Materials of engineering and construction. Mechanics of materials
TA401-492
Polymers and polymer manufacture
TP1080-1185
spellingShingle nanocomposite
one-pot
ultrasonic
chromene
biscoumarins
nanoanalysis
Materials of engineering and construction. Mechanics of materials
TA401-492
Polymers and polymer manufacture
TP1080-1185
Hossein Shahbazi-Alavi
Ali Kareem Abbas
Javad Safaei-Ghomi
Sonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite
description Co3O4/NiO@GQDs@SO3H nanocatalyst has been used as an effective catalyst for the preparation of dihydropyrano[3,2-c]chromenes and biscoumarins under ultrasonic irradiations in ethanol. The catalyst has been characterized by FT-IR, XRD, SEM, EDS, BET, TGA, XPS and VSM. Atom economy, reusable catalyst, low catalyst loading, applicability to a wide range of substrates, high yields of products, and applying the sonochemical methodology as an efficient method and innocuous means of activation in synthetic chemistry for the preparation of medicinally privileged heterocyclic molecules are some of the substantial features of this method. The present catalytic procedure is extensible to a wide diversity of substrates for the synthesis of a variety-oriented library of pyranochromene and biscoumarins. The ultrasound approach decreases times, increases yields of products by creating the activation energy in micro surroundings. Meanwhile, this recoverable catalyst will provide a regular platform for heterogeneous catalysis, green chemistry, and environmentally benign protocols in the near future.
format article
author Hossein Shahbazi-Alavi
Ali Kareem Abbas
Javad Safaei-Ghomi
author_facet Hossein Shahbazi-Alavi
Ali Kareem Abbas
Javad Safaei-Ghomi
author_sort Hossein Shahbazi-Alavi
title Sonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite
title_short Sonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite
title_full Sonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite
title_fullStr Sonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite
title_full_unstemmed Sonosynthesis of pyranochromenes and biscoumarins catalyzed by Co3O4/NiO@GQDs@SO3H nanocomposite
title_sort sonosynthesis of pyranochromenes and biscoumarins catalyzed by co3o4/nio@gqds@so3h nanocomposite
publisher Taylor & Francis Group
publishDate 2020
url https://doaj.org/article/9d149fb0f5c2472085c90af54ba2fba3
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