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dc.contributor.authorBelmonte Sánchez, Eva-
dc.contributor.authorIglesias, María José-
dc.contributor.authorHajjouji, Hajjouji el-
dc.contributor.authorRoces, Laura-
dc.contributor.authorGarcía-Granda, Santiago-
dc.contributor.authorVilluendas, Pedro-
dc.contributor.authorUrriolabeitia, Esteban P.-
dc.identifierdoi: 10.1021/acs.organomet.7b00102-
dc.identifiere-issn: 1520-6041-
dc.identifierissn: 0276-7333-
dc.identifier.citationOrganometallics 36(10): 1962-1973 (2017)-
dc.description.abstractA C,S-cycloaurated complex based on an ortho-substituted phosphinothioic amide framework has been synthesized in high yield through tin(IV)-Au(III) transmetalation from the corresponding chlorodimethylstannyl derivative. The latter was prepared in a two-step process involving directed ortho lithiation/quenching with MeSnCl followed by Me/Cl exchange. The tin(IV) and gold(III) complexes have been characterized in solution and in the solid state. In both complexes, the phosphinothioic amide moiety acts as a C-C-P-S pincer ligand with formation of five-membered-ring metalacycles. The use of the gold(III) complex in the amine-aldehyde-alkyne (A) three-component coupling synthesis of propargylamines showed that the compound is transformed into the Sonogashira-type o-alkynylphosphinothioic amide with generation of Au(I) nanoparticles with an average size of around 7 nm. These nanoparticles proved to be excellent catalysts in A coupling processes, providing propargylamines in high yields under solvent-free conditions with loadings as low as 0.1 mol % and without the use of additives.-
dc.description.sponsorshipWe thank the MINECO and FEDER program for financial support (projects CTQ2011-27705 and CTQ2014-57157-P). E.B.S. thanks the MICINN for a Ph.D. fellowship. E.P.U. thanks the Gobierno de Aragon-FEDER (Spain, group E97) for financial support.-
dc.publisherAmerican Chemical Society-
dc.titleCycloaurated phosphinothioic amide complex as a precursor of gold(I) nanoparticles: Efficient catalysts for A3 synthesis of propargylamines under solvent-free conditions-
dc.description.versionPeer Reviewed-
dc.contributor.funderEuropean Commission-
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderGobierno de Aragón-
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