ENERGYPOLIS SEMINAR - EPFL€¦ · CV: Mrs. Iuliia Romanenko Born 29. July 1989 in Kiev, Ukraine....
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École polytechnique fédérale de Lausanne (EPFL) Valais/Wallis Institute of Chemical Sciences and Engineering (ISIC) Basic Science Faculty (SB) Energypolis, Rue de l’Industrie 17, CH-1950 Sion, Switzerland ENERGYPOLIS SEMINAR 10. 12. 2015, 16:00 - 17:00, ENERGYPOLIS Sion, 4 th floor, Seminar room Preparation of well-defined Ir(I)-NHC based heterogeneous catalyst for functional olefin hydrogenation Iuliia Romanenko Laboratory of Surface Organometallic Chemistry (LCOMS), Claude Bernard University of Lyon, 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France At the upcoming talk, the preparation as well as the catalytic performance of well- defined Ir(I)-NHC based catalytic material will be presented. Alkene hydrogenation is a key step in many bulk and fine chemicals production processes. Among the large number of homogeneous and heterogeneous catalysts, promising Iridium (I) organometallic complexes were prepared since the discovery of the well-known Crabtree’s catalyst, [Ir(COD)(py)(PCy3)]BF4,[1] to address selectivity issues in asymmetric hydrogenation[2] or hydrogenation of highly hindered tetrasubstituted olefins[3]. However, the industrial use of Ir organometallic complexes as catalysts is limited by their fast decomposition leading to the formation of highly stable and inactive polynuclear iridium hydride- bridged complexes.[4] The goal of this work was to isolate the active Ir(I)-NHC species onto the solid support in order to prevent such bimolecular deactivation processes. References: [1] R.H. Crabtree, Acc. Chem. Rev. 12 (1979) 331 [2] J.J. Verendel, O. Pamies, D. Montserrat, P.G. Andersson, Chem. Rev. 114 (2014) 2130. [3] B. Wustenberg, A. Pfaltz, Adv. Synth. Catal 350 (2008) 174. [4].a) Xu, Y.; Mingos, D. M.; Brown, J. M., Chem. Commun. 2008, (2), 199-201; b)Xu, Y.; Celik, M. A.; Thompson, A. L.; Cai, H.; Yurtsever, M.; Odell, B.; Green, J. C.; Mingos, D. M.; Brown, J. M., Angew. Chem. Int. Ed. 2009, 48 (3), 582- 585; c) b) S. P. Smidt, A. Pfaltz, E. Martínez-Viviente, P. S. Pregosin, A. Albinati, Organometallics 2003, 22, 1000-1009 CV: Mrs. Iuliia Romanenko Born 29. July 1989 in Kiev, Ukraine. Iuliia Romanenko got her Bachelor degree in Analytical Chemistry at the University of Kiev (2010). Her Master degree she obtained in the faculty of High Technologies at the same university (2012). From 2011-2012 she made a 6 month internship in the Laboratory of Surface Organometallic Chemistry, in Claude Bernard University of Lyon, France. In 2012 she joined the same lab as a PhD student in the field of catalytic materials preparation.
Transcript of ENERGYPOLIS SEMINAR - EPFL€¦ · CV: Mrs. Iuliia Romanenko Born 29. July 1989 in Kiev, Ukraine....
ÉcolepolytechniquefédéraledeLausanne(EPFL)Valais/Wallis
InstituteofChemicalSciencesandEngineering(ISIC)BasicScienceFaculty(SB)Energypolis,Ruedel’Industrie17,CH-1950Sion,Switzerland
ENERGYPOLISSEMINAR10.12.2015,16:00-17:00,ENERGYPOLISSion,4
thfloor,Seminarroom
Preparation of well-defined Ir(I)-NHC based heterogeneous catalyst for functional olefin
hydrogenation
IuliiaRomanenko
LaboratoryofSurfaceOrganometallicChemistry(LCOMS),ClaudeBernardUniversityof
Lyon,43Bddu11Novembre1918,69616Villeurbanne,France
Attheupcomingtalk,thepreparationaswellasthecatalyticperformanceofwell-definedIr(I)-NHCbasedcatalyticmaterialwillbepresented.
Alkene hydrogenation is a key step inmany bulk and fine chemicals productionprocesses.Amongthelargenumberofhomogeneousandheterogeneouscatalysts,promising Iridium (I) organometallic complexes were prepared since thediscovery of the well-known Crabtree’s catalyst, [Ir(COD)(py)(PCy3)]BF4,[1] toaddress selectivity issues in asymmetric hydrogenation[2] or hydrogenation ofhighly hindered tetrasubstituted olefins[3]. However, the industrial use of Irorganometallic complexes as catalysts is limited by their fast decompositionleadingtotheformationofhighlystableandinactivepolynucleariridiumhydride-bridged complexes.[4] The goal of this workwas to isolate the active Ir(I)-NHCspeciesonto thesolid support inorder toprevent suchbimoleculardeactivationprocesses.
References:
[1]R.H.Crabtree,Acc.Chem.Rev.12(1979)331[2]J.J.Verendel,O.Pamies,D.Montserrat,P.G.Andersson,Chem.Rev.114(2014)2130.[3]B.Wustenberg,A.Pfaltz,Adv.Synth.Catal350(2008)174.[4].a)Xu,Y.;Mingos,D.M.;Brown,J.M.,Chem.Commun.2008,(2),199-201;b)Xu,Y.;Celik,M.A.;Thompson,A.L.;Cai,H.;Yurtsever,M.;Odell,B.;Green,J.C.;Mingos,D.M.;Brown,J.M.,Angew.Chem.Int.Ed.2009,48(3),582-585;c)b)S.P.Smidt,A.Pfaltz,E.Martínez-Viviente,P.S.Pregosin,A.Albinati,Organometallics2003,22,1000-1009
CV:Mrs.IuliiaRomanenko
Born29.July1989inKiev,Ukraine.IuliiaRomanenkogotherBachelordegreeinAnalyticalChemistryattheUniversityofKiev(2010).HerMasterdegreesheobtained in the faculty of High Technologies at the same university (2012).From2011-2012shemadea6monthinternshipintheLaboratoryofSurfaceOrganometallic Chemistry, in Claude Bernard University of Lyon, France. In2012 she joined the same lab as a PhD student in the field of catalyticmaterialspreparation.
