Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation

Abstract A new nano-scale Cu@salicylaldehyde-modified-chitosan (Cu@Sal-CS) was synthesized through a green, eco-friendly and cost-effective technique. The prepared catalyst was characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), Energy-dispersive...

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Autores principales:	Mahboubeh Asadi, M. Reza Naimi-Jamal, Leila Panahi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b9b334047648441696d0b643258a9cd6
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spelling	oai:doaj.org-article:b9b334047648441696d0b643258a9cd62021-12-02T18:33:51ZGreen synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation10.1038/s41598-021-97554-32045-2322https://doaj.org/article/b9b334047648441696d0b643258a9cd62021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97554-3https://doaj.org/toc/2045-2322Abstract A new nano-scale Cu@salicylaldehyde-modified-chitosan (Cu@Sal-CS) was synthesized through a green, eco-friendly and cost-effective technique. The prepared catalyst was characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDXS), and inductively coupled plasma (ICP) analysis. The synthesized Cu@Sal-CS catalyst indicated its performance in the C–O and C–N oxidative coupling using the reaction of 1,3-dicarbonyl derivatives/2- substituted phenols with amides for the preparation of carbamates, as well as in the reaction of aldehydes and various amines in the synthesis of amides. The significant features of this work are operational simplicity of catalyst synthesis, in situ and new modification method, use of an efficient, recoverable, frequently reused and stable catalyst without any loss of catalytic activity, and high yields of the products in short times.Mahboubeh AsadiM. Reza Naimi-JamalLeila PanahiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mahboubeh Asadi M. Reza Naimi-Jamal Leila Panahi Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation
description	Abstract A new nano-scale Cu@salicylaldehyde-modified-chitosan (Cu@Sal-CS) was synthesized through a green, eco-friendly and cost-effective technique. The prepared catalyst was characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDXS), and inductively coupled plasma (ICP) analysis. The synthesized Cu@Sal-CS catalyst indicated its performance in the C–O and C–N oxidative coupling using the reaction of 1,3-dicarbonyl derivatives/2- substituted phenols with amides for the preparation of carbamates, as well as in the reaction of aldehydes and various amines in the synthesis of amides. The significant features of this work are operational simplicity of catalyst synthesis, in situ and new modification method, use of an efficient, recoverable, frequently reused and stable catalyst without any loss of catalytic activity, and high yields of the products in short times.
format	article
author	Mahboubeh Asadi M. Reza Naimi-Jamal Leila Panahi
author_facet	Mahboubeh Asadi M. Reza Naimi-Jamal Leila Panahi
author_sort	Mahboubeh Asadi
title	Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation
title_short	Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation
title_full	Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation
title_fullStr	Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation
title_full_unstemmed	Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation
title_sort	green synthesis of carbamates and amides via cu@sal-cs catalyzed c–o and c–n oxidative coupling accelerated by microwave irradiation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b9b334047648441696d0b643258a9cd6
work_keys_str_mv	AT mahboubehasadi greensynthesisofcarbamatesandamidesviacusalcscatalyzedcoandcnoxidativecouplingacceleratedbymicrowaveirradiation AT mrezanaimijamal greensynthesisofcarbamatesandamidesviacusalcscatalyzedcoandcnoxidativecouplingacceleratedbymicrowaveirradiation AT leilapanahi greensynthesisofcarbamatesandamidesviacusalcscatalyzedcoandcnoxidativecouplingacceleratedbymicrowaveirradiation
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Green synthesis of carbamates and amides via Cu@Sal-Cs catalyzed C–O and C–N oxidative coupling accelerated by microwave irradiation

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