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Hydrogenation of α,β-Unsaturated Carbonyl Compounds over Covalently Heterogenized Ru(II) Diphosphine Complexes on AlPO4-Sepiolite Supports
dc.contributor.author | Caballero, Verónica | |
dc.contributor.author | Estévez, R. | |
dc.contributor.author | Luna, Diego | |
dc.contributor.author | Bautista, Felipa M. | |
dc.contributor.author | Romero, Antonio A. | |
dc.contributor.author | Aguado-Deblas, Laura | |
dc.contributor.author | Hidalgo-Carrillo, J. | |
dc.contributor.author | Romero, Isabel | |
dc.date.accessioned | 2021-02-23T07:59:39Z | |
dc.date.available | 2021-02-23T07:59:39Z | |
dc.date.issued | 2021 | |
dc.identifier.uri | http://hdl.handle.net/10396/21092 | |
dc.description.abstract | In this work, the covalent immobilization of two ruthenium(II) complexes, i.e., [RuIICl (bpea){(S)(-)(BINAP)}](BF4), 1, and [RuIICl(bpea)(DPPE)](BF4), 2, where BINAP = 2,2’-bis(diphenylphosphino)-1,1’-binaphthyl and DPPE = 1,2-bis(diphenylphosphino)ethane, have been obtained (AlPO4-Sepiolite@1 and AlPO4-Sepiolite@2) by using a N-tridentate ligand N,N-bis-(2-pyridylmethyl)ethylamine (bpea), linked to an amorphous AlPO4-Sepiolite (20/80) inorganic support. This AlPO4-sepiolite support is able to immobilize the double amount of ruthenium complex (1.65%) than the amorphous AlPO4 (0.89%). Both heterogenized complexes have been assessed as catalysts in the liquid phase hydrogenation of several substrates with carbonyl and/or olefinic double bonds using methanol as solvent, attaining good catalytic activity and high enantioselectivity (99%). The highest Turn Over Number (TON) value (748.6) was obtained over the [RuII Cl (bpea)(DPPE)](BF4) 2 catalyst, although the [RuIICl(bpea){(S)(-)(BINAP)}](BF4) 1 exhibits better reusability. In fact, the [RuIICl(bpea){(S)(-)(BINAP)}](BF4) immobilized on AlPO4-Sepiolite maintained the activity throughout 14 successive runs. Furthermore, some findings on hydrogenation mechanisms of the α,β-unsaturated carbonyl compounds over Ru catalysts have been also obtained. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.source | Catalysts 11(2), 289 (2021) | es_ES |
dc.subject | Ruthenium complexes | es_ES |
dc.subject | Covalent heterogenization | es_ES |
dc.subject | DPPE ligand | es_ES |
dc.subject | BINAP ligand | es_ES |
dc.subject | Bpea ligand | es_ES |
dc.subject | Enantioselective hydrogenation | es_ES |
dc.subject | AlPO4-Sepiolite support | es_ES |
dc.subject | Hydrogenation mechanism | es_ES |
dc.subject | α,β-unsaturated carbonyl compound | es_ES |
dc.title | Hydrogenation of α,β-Unsaturated Carbonyl Compounds over Covalently Heterogenized Ru(II) Diphosphine Complexes on AlPO4-Sepiolite Supports | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.3390/catal11020289 | es_ES |
dc.relation.projectID | Gobierno de España. NE2016‐81013‐R | es_ES |
dc.relation.projectID | Gobierno de España. PID2019‐104953RB‐100 | es_ES |
dc.relation.projectID | Junta de Andalucía. 1264113‐R (CATOLIVAL) | es_ES |
dc.relation.projectID | Junta de Andalucía. P18‐RT‐4822 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |