Show simple item record

dc.contributor.authorDehury, Niranjan
dc.contributor.authorMaity, Niladri
dc.contributor.authorTripathy, Suman Kumar
dc.contributor.authorBasset, Jean-Marie
dc.contributor.authorPatra, Srikanta
dc.date.accessioned2016-07-26T09:20:37Z
dc.date.available2016-07-26T09:20:37Z
dc.date.issued2016-07-26
dc.identifier.citationDinuclear Tetrapyrazolyl Palladium Complexes Exhibiting Facile Tandem Transfer Hydrogenation/Suzuki Coupling Reaction of Fluoroarylketone 2016 ACS Catalysis
dc.identifier.issn2155-5435
dc.identifier.issn2155-5435
dc.identifier.doi10.1021/acscatal.6b01421
dc.identifier.urihttp://hdl.handle.net/10754/617510
dc.description.abstractHerein, we report an unprecedented example of dinuclear pyrazolyl-based Pd complexes exhibiting facile tandem catalysis for fluoroarylketone: Tetrapyrazolyl di-palladium complexes with varying Pd-Pd distances efficiently catalyze the tandem reaction involving transfer hydrogenation of fluoroarylketone to the corresponding alcohol and Suzuki-Miyaura cross coupling reaction of the resulting fluoroarylalcohol under moderate reaction conditions, to biaryl alcohol. The complex with the shortest Pd-Pd distance exhibits the highest tandem activity among its di-metallic analogues, and exceeds in terms of activity and selectivity the analogous mononuclear compound. The kinetics of the reaction indicates clearly that reductive transformation of haloarylketone into haloaryalcohol is the rate determining step in the tandem reaction. Interestingly while fluoroarylketone undergoes the multistep tandem catalysis, the chloro- and bromo-arylketones undergo only a single step C-C coupling reaction resulting in biarylketone as the final product. Unlike the pyrazole based Pd compounds, the precursor PdCl2 and the phosphine based relevant complexes (PPh3)2PdCl2 and (PPh3)4Pd are found to be unable to exhibit the tandem catalysis.
dc.description.sponsorshipThis work has been supported by DST (EMR/2015/002219), New Delhi, India. ND and SKT are grateful to the University Grant Commission (UGC) and the Council of Scientific and Industrial Research (CSIR), New Delhi, India, respectively, for their fellowship. N. M. acknowledges the King Abdullah University of Science and Technology (KAUST) for the postdoctoral fellowship. The authors are grateful to the reviewers’ for their valuable comments and suggestions to improve the manuscript.
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acscatal.6b01421
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Catalysis, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acscatal.6b01421.
dc.titleDinuclear Tetrapyrazolyl Palladium Complexes Exhibiting Facile Tandem Transfer Hydrogenation/Suzuki Coupling Reaction of Fluoroarylketone
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalACS Catalysis
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Basic Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar, Orissa-751007, India
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personMaity, Niladri
kaust.personBasset, Jean-Marie
dc.relation.issupplementedbyDOI:10.5517/ccdc.csd.cc1lpxls
dc.relation.issupplementedbyDOI:10.5517/ccdc.csd.cc1lpxmt
dc.relation.issupplementedbyDOI:10.5517/ccdc.csd.cc1lpxkr
refterms.dateFOA2017-07-18T00:00:00Z
display.relations<b> Is Supplemented By:</b> <br/> <ul> <li><i>[Dataset]</i> <br/> . DOI: <a href="https://doi.org/10.5517/ccdc.csd.cc1lpxls">10.5517/ccdc.csd.cc1lpxls</a> HANDLE: <a href="http://hdl.handle.net/10754/663672">10754/663672</a></li></ul><b> Is Supplemented By:</b> <br/> <ul> <li><i>[Dataset]</i> <br/> . DOI: <a href="https://doi.org/10.5517/ccdc.csd.cc1lpxmt">10.5517/ccdc.csd.cc1lpxmt</a> HANDLE: <a href="http://hdl.handle.net/10754/663673">10754/663673</a></li></ul><b> Is Supplemented By:</b> <br/> <ul> <li><i>[Dataset]</i> <br/> . DOI: <a href="https://doi.org/10.5517/ccdc.csd.cc1lpxkr">10.5517/ccdc.csd.cc1lpxkr</a> HANDLE: <a href="http://hdl.handle.net/10754/663674">10754/663674</a></li></ul>
dc.date.published-online2016-07-26
dc.date.published-print2016-08-05


Files in this item

Thumbnail
Name:
acscatal2E6b01421.pdf
Size:
533.4Kb
Format:
PDF
Description:
Accepted Manuscript

This item appears in the following Collection(s)

Show simple item record