Platinum phosphinothiolato hydride complexes: Synthesis, structure and evaluation as tin-free hydroformylation catalysts
dc.contributor.author
dc.date.accessioned
2016-04-29T07:08:16Z
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2016-04-29T07:08:16Z
dc.date.issued
2016
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1477-9226
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dc.description.abstract
Ligand 2-diphenylphosphinothiophenol (Hsarp) reacted with Pt(PPh3)4 to yield trans-[PtH(sarp)(PPh3)], which undergoes fast exchange with free PPh3 on the NMR time scale and very slowly and reversibly formed some cis-[PtH(sarp)(PPh3)] over time in solution (11%, 24 h). Reaction of trans-[PtH(sarp)(PPh3)] with Hsarp in boiling toluene gave cis- And trans-[Pt(sarp)2]; the cis isomer being more stable. These complexes were characterized by 1H and 31P NMR and also analyzed by XRD in the case of trans-[PtH(sarp)(PPh3)], trans-[Pt(sarp)2], and cis-[Pt(sarp)2]. trans-[PtH(sarp)(PPh3)] was evaluated as a preformed, tin-free hydroformylation catalyst on styrene and found active at 100 °C, at pressures over 75 bar, yielding phenylpropanal (regioselectivities up to 83% in 2-phenylpropanal), with total conversions to aldehydes up to 100% at styrene/platinum ratios from 400/1 to 1000/1 and minimal hydrogenation products
dc.description.sponsorship
This work was financially supported by the Dirección General de Enseñanza Superior e Investigación Científica (DGESIC) of Spain though project BQU2002-04070-C02
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application/pdf
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spa
dc.publisher
Royal Society of Chemistry (RSC)
dc.relation
MICYT/PN 2002-2005/BQU2002-04070-C02-01
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Reproducció digital del document publicat a: http://dx.doi.org/10.1039/c5dt04107d
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© Dalton Transactions, 2016, vol. 45, p. 3964-3973
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Articles publicats (D-Q)
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Tots els drets reservats
dc.subject
dc.title
Platinum phosphinothiolato hydride complexes: Synthesis, structure and evaluation as tin-free hydroformylation catalysts
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
024576
dc.contributor.funder
dc.identifier.eissn
1477-9234