130307 20240124152850.0 doi 10.1039/c8dt05070h sideral 111523 ART-2019-111523 eng Guzmán, Jefferson Universidad de Zaragoza (orcid)0000-0001-9340-5952 Selective reduction of formamides to O-silylated hemiaminals or methylamines with HSiMe2Ph catalyzed by iridium complexes 2019 The reaction of (4-methyl-pyridin-2-iloxy)ditertbutylsilane (NSi tBu -H, 1) with [IrCl(coe) 2 ] 2 affords the iridium(iii) complex [Ir(H)(Cl)(¿ 2 -NSi tBu )(coe)] (2), which has been fully characterized including X-ray diffraction studies. The reaction of 2 with AgCF 3 SO 3 leads to the formation of species [Ir(H)(CF 3 SO 3 )(¿ 2 -NSi tBu )(coe)] (3). The iridium complexes 2 and 3 are effective catalysts for the reduction of formamides with HSiMe 2 Ph. The selectivity of the reduction process depends on the catalyst. Thus, by using complex 2, with a chloride ancillary ligand, it has been possible to selectively obtain the corresponding O-silylated hemiaminal by reaction of formamides with one equivalent of HSiMe 2 Ph, while complex 3, with a triflate ligand instead of chloride, catalyzed the selective reduction of formamides to the corresponding methylamine. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA-FSE/E07 info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-67366-P info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.174 2019 CHEMISTRY, INORGANIC & NUCLEAR 5 / 45 = 0.111 2019 Q1 T1 1.048 2019 Inorganic Chemistry 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Bernal, Ana M. García-Orduña, Pilar Universidad de Zaragoza (orcid)0000-0002-7063-1292 Lahoz, Fernando J. Universidad de Zaragoza (orcid)0000-0001-8054-2237 Oro, Luis A. Universidad de Zaragoza (orcid)0000-0001-7154-7239 Fernández-Alvarez, Francisco J. Universidad de Zaragoza (orcid)0000-0002-0497-1969 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 48, 13 (2019), 4255-4262 Dalton Trans. Dalton Transactions 1477-9226 799698 http://zaguan.unizar.es/record/130307/files/texto_completo.pdf Postprint 2736630 http://zaguan.unizar.es/record/130307/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130307 articulos driver 2024-01-24-15:01:34 ARTICLE