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Metal Node Control of Brønsted Acidity in Heterobimetallic Titanium-Organic Frameworks

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Metal Node Control of Brønsted Acidity in Heterobimetallic Titanium-Organic Frameworks

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dc.contributor.author	Rubio Gaspar, Ana
dc.contributor.author	Navalón, Sergio
dc.contributor.author	Tatay Aguilar, Sergio
dc.contributor.author	Cirujano, Francisco G.
dc.contributor.author	Fernández Conde, Carmen
dc.contributor.author	Padial, Natalia M.
dc.contributor.author	Martí Gastaldo, Carlos
dc.date.accessioned	2023-09-12T14:27:51Z
dc.date.available	2024-01-24T05:45:06Z
dc.date.issued	2023
dc.identifier.citation	Rubio Gaspar, Ana Navalón, Sergio Tatay Aguilar, Sergio Cirujano, Francisco G. Fernández Conde, Carmen Padial, Natalia M. Martí Gastaldo, Carlos 2023 Metal Node Control of Brønsted Acidity in Heterobimetallic Titanium-Organic Frameworks Journal of the American Chemical Society 145 7 3855 3860
dc.identifier.uri	https://hdl.handle.net/10550/89219
dc.description.abstract	Compared to indirect framework modification, synthetic control of cluster composition can be used to gain direct access to catalytic activities exclusive of specific metal combinations. We demonstrate this concept by testing the aminolysis of epoxides with a family of isostructural mesoporous frameworks featuring five combinations of homometallic and heterobimetallic metal-oxo trimers (Fe3, Ti3, TiFe2, TiCo2, and TiNi2). Only TiFe2 nodes display activities comparable to benchmark catalysts based on grafting of strong acids, which here originate from the combination of Lewis Ti4+ and Brønsted Fe3+-OH acid sites. The applicability of MUV-101(Fe) to the synthesis of β-amino alcohols is demonstrated with a scope that also includes the gram scale synthesis of propranolol, a natural β-blocker listed as an essential medicine by the World Health Organization, with excellent yield and selectivity.
dc.language.iso	eng
dc.relation.ispartof	Journal of the American Chemical Society, 2023, vol. 145, num. 7, p. 3855-3860
dc.subject	Química
dc.title	Metal Node Control of Brønsted Acidity in Heterobimetallic Titanium-Organic Frameworks
dc.type	journal article
dc.date.updated	2023-09-12T14:27:51Z
dc.identifier.doi	10.1021/jacs.2c12718
dc.identifier.idgrec	161050
dc.embargo.terms	1 year
dc.rights.accessRights	open access