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Visible Light-Gated Organocatalysis Using a Ru-II-Photocage

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Visible Light-Gated Organocatalysis Using a Ru-II-Photocage

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dc.contributor.author González-Delgado, José A. es_ES
dc.contributor.author Romero, Miguel A. es_ES
dc.contributor.author Bosca Mayans, Francisco es_ES
dc.contributor.author Arteaga, Jesús F. es_ES
dc.contributor.author Pischel, Uwe es_ES
dc.date.accessioned 2021-05-07T03:32:26Z
dc.date.available 2021-05-07T03:32:26Z
dc.date.issued 2020-11-06 es_ES
dc.identifier.issn 0947-6539 es_ES
dc.identifier.uri http://hdl.handle.net/10251/166061
dc.description This is the peer reviewed version of the following article: J. A. González-Delgado, M. A. Romero, F. Boscá, J. F. Arteaga, U. Pischel, Chem. Eur. J. 2020, 26, 14229, which has been published in final form at https://doi.org/10.1002/chem.202001893. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. es_ES
dc.description.abstract [EN] The light-gated organocatalysis via the release of 4-N,N-dimethylaminopyridine (DMAP) by irradiation of the [Ru(bpy)(2)(DMAP)(2)](2+)complex with visible light was investigated. As model reaction the acetylation of benzyl alcohols with acetic anhydride was chosen. The pre-catalyst releases one DMAP molecule on irradiation at wavelengths longer than 455 nm. The photochemical process was characterized by steady-state irradiation and ultrafast transient absorption spectroscopy. The latter enabled the observation of the(3)MLCT state and the spectral features of the penta-coordinated intermediate [Ru(bpy)(2)(DMAP)](2+). The released DMAP catalyzes the acetylation of a wide range of benzyl alcohols with chemical yields of up to 99 %. Control experiments revealed unequivocally that it is the released DMAP which takes the role of the catalyst. es_ES
dc.description.sponsorship We are grateful for the financial support by the Spanish Ministry of Science, Innovation, and Universities (grant CTQ2017- 89832-P for U.P.), the University of Huelva (grant UHU-9-542- 2019 for J.F.A.), and the Generalitat Valenciana (PROMETEO program, 2017-075 for P.B.). The experimental assistance of A. Morales and S. Abad in the early stages of the work, as well as the technical support by F. Molina in the determination of the single-crystal X-ray structure of 1-(PF6)2 is acknowledged. es_ES
dc.language Inglés es_ES
dc.publisher John Wiley & Sons es_ES
dc.relation MCIU/CTQ2017-89832-P es_ES
dc.relation UHU/UHU-9-542-2019 es_ES
dc.relation GENERALITAT VALENCIANA/PROMETEO/2017/075 es_ES
dc.relation.ispartof Chemistry - A European Journal es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Organocatalysis es_ES
dc.subject Photochemistry es_ES
dc.subject Photorelease es_ES
dc.subject Ruthenium complexes es_ES
dc.subject Time-resolved spectroscopy es_ES
dc.title Visible Light-Gated Organocatalysis Using a Ru-II-Photocage es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1002/chem.202001893 es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation González-Delgado, JA.; Romero, MA.; Bosca Mayans, F.; Arteaga, JF.; Pischel, U. (2020). Visible Light-Gated Organocatalysis Using a Ru-II-Photocage. Chemistry - A European Journal. 26(62):14229-14235. https://doi.org/10.1002/chem.202001893 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1002/chem.202001893 es_ES
dc.description.upvformatpinicio 14229 es_ES
dc.description.upvformatpfin 14235 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 26 es_ES
dc.description.issue 62 es_ES
dc.identifier.pmid 32449554 es_ES
dc.relation.pasarela S\430610 es_ES
dc.contributor.funder Universidad de Huelva es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Ministerio de Ciencia, Innovación y Universidades es_ES


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