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dc.contributor.authorAbramov, Alex
dc.contributor.authorReiser, Oliver
dc.contributor.authorDíaz Díaz, David
dc.date.accessioned2020-09-28T11:25:23Z
dc.date.available2020-09-28T11:25:23Z
dc.date.issued2020
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/21327
dc.description.abstractThe outcome of photosensitized [2+2]-cycloaddition reactions of various cinnamates has been compared in different reaction media, including homogeneous organic solutions under inert conditions, degassed water, and aerated physical gels. The reactions were performed under LED blue light (λmax=455 nm) irradiation and [Ir{dF(CF3)ppy}2(dtb-bpy)]PF6 (1.0 mol%) as photocatalyst. The processes were optimized taking into consideration solvent, gelator, and substrate. Comparative kinetics analyses, as well as the effect of the reaction media on the diastereoselectivity of the process, were evaluated during this investigation. In a number of cases, carrying out the reaction in a less polar solvent, like toluene or highly polar solvent, like water had a tremendous impact on the diastereoselectivity of the process, pointing towards an effect on the stabilization of the putative diradical intermediate in this medium. Moreover, while for reactions run in homogeneous solution oxygen needs to be excluded, no erosion in yield is observed when the photoadditions were run in aerated gel media.es_ES
dc.description.sponsorshipDeutsche Forschungsgemeinschaftes_ES
dc.description.sponsorshipElitenetzwerk Bayernes_ES
dc.description.sponsorshipMinisterio de Ciencia, Innovación y Universidadeses_ES
dc.language.isoenes_ES
dc.publisherWileyes_ES
dc.relation.ispartofseriesChemistryOpen, 2020, Vol. 9, N. 6;
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleEffect of Reaction Media on Photosensitized [2+2]- Cycloaddition of Cinnamateses_ES
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1002/open.202000092
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.subject.keyword[2+2]-cycloadditionses_ES
dc.subject.keywordphotosensitizerses_ES
dc.subject.keywordsupramolecular gelses_ES
dc.subject.keyworddiradicalses_ES
dc.subject.keyworddiastereoselectivityes_ES
dc.subject.keywordphotocatalysises_ES
dc.subject.keyword[2+2]-cicloadicioneses_ES
dc.subject.keywordfotosensibilizadoreses_ES
dc.subject.keywordgeles supramoleculareses_ES
dc.subject.keywordfotocatálisises_ES
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional