Advanced sol–gel process for efficient heterogeneous ring-closing metathesis

Abstract Olefin metathesis, a powerful synthetic method with numerous practical applications, can be improved by developing heterogeneous catalysts that can be recycled. In this study, a single-stage process for the entrapment of ruthenium-based catalysts was developed by the sol–gel process. System...

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Autores principales:	Shiran Aharon, Dan Meyerstein, Eyal Tzur, Dror Shamir, Yael Albo, Ariela Burg
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/651a7eaee1f14124b7ac79d7495d1e4f
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spelling	oai:doaj.org-article:651a7eaee1f14124b7ac79d7495d1e4f2021-12-02T17:41:28ZAdvanced sol–gel process for efficient heterogeneous ring-closing metathesis10.1038/s41598-021-92043-z2045-2322https://doaj.org/article/651a7eaee1f14124b7ac79d7495d1e4f2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92043-zhttps://doaj.org/toc/2045-2322Abstract Olefin metathesis, a powerful synthetic method with numerous practical applications, can be improved by developing heterogeneous catalysts that can be recycled. In this study, a single-stage process for the entrapment of ruthenium-based catalysts was developed by the sol–gel process. System effectiveness was quantified by measuring the conversion of the ring-closing metathesis reaction of the substrate diethyl diallylmalonate and the leakage of the catalysts from the matrix. The results indicate that the nature of the precursor affects pore size and catalyst activity. Moreover, matrices prepared with tetraethoxysilane at an alkaline pH exhibit a better reaction rate than in the homogenous system under certain reaction conditions. To the best of our knowledge, this is the first study to present a one-step process that is simpler and faster than the methods reported in the literature for catalyst entrapment by the sol–gel process under standard conditions.Shiran AharonDan MeyersteinEyal TzurDror ShamirYael AlboAriela BurgNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shiran Aharon Dan Meyerstein Eyal Tzur Dror Shamir Yael Albo Ariela Burg Advanced sol–gel process for efficient heterogeneous ring-closing metathesis
description	Abstract Olefin metathesis, a powerful synthetic method with numerous practical applications, can be improved by developing heterogeneous catalysts that can be recycled. In this study, a single-stage process for the entrapment of ruthenium-based catalysts was developed by the sol–gel process. System effectiveness was quantified by measuring the conversion of the ring-closing metathesis reaction of the substrate diethyl diallylmalonate and the leakage of the catalysts from the matrix. The results indicate that the nature of the precursor affects pore size and catalyst activity. Moreover, matrices prepared with tetraethoxysilane at an alkaline pH exhibit a better reaction rate than in the homogenous system under certain reaction conditions. To the best of our knowledge, this is the first study to present a one-step process that is simpler and faster than the methods reported in the literature for catalyst entrapment by the sol–gel process under standard conditions.
format	article
author	Shiran Aharon Dan Meyerstein Eyal Tzur Dror Shamir Yael Albo Ariela Burg
author_facet	Shiran Aharon Dan Meyerstein Eyal Tzur Dror Shamir Yael Albo Ariela Burg
author_sort	Shiran Aharon
title	Advanced sol–gel process for efficient heterogeneous ring-closing metathesis
title_short	Advanced sol–gel process for efficient heterogeneous ring-closing metathesis
title_full	Advanced sol–gel process for efficient heterogeneous ring-closing metathesis
title_fullStr	Advanced sol–gel process for efficient heterogeneous ring-closing metathesis
title_full_unstemmed	Advanced sol–gel process for efficient heterogeneous ring-closing metathesis
title_sort	advanced sol–gel process for efficient heterogeneous ring-closing metathesis
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/651a7eaee1f14124b7ac79d7495d1e4f
work_keys_str_mv	AT shiranaharon advancedsolgelprocessforefficientheterogeneousringclosingmetathesis AT danmeyerstein advancedsolgelprocessforefficientheterogeneousringclosingmetathesis AT eyaltzur advancedsolgelprocessforefficientheterogeneousringclosingmetathesis AT drorshamir advancedsolgelprocessforefficientheterogeneousringclosingmetathesis AT yaelalbo advancedsolgelprocessforefficientheterogeneousringclosingmetathesis AT arielaburg advancedsolgelprocessforefficientheterogeneousringclosingmetathesis
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Advanced sol–gel process for efficient heterogeneous ring-closing metathesis

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