N,N-Diphospholylamines-A New Family of Ligands for Highly Active, Chromium-Based, Selective Ethene Oligomerisation Catalysts
A series of new diphosphazane (PNP) ligands that contain 2,3,4,5‐tetraethylphosphole or dibenzophosphole moieties has been synthesised. The new compounds have been screened for chromium‐catalysed, selective ethene oligomerisation by in situ combination with CrCl3(thf)3 and methylaluminoxane (MAO). T...
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| creator | Stennett, Tom E. Hey, Thomas W. Ball, Liam T. Flynn, Stephanie R. Radcliffe, James E. McMullin, Claire L. Wingad, Richard L. Wass, Duncan F. |
| description | A series of new diphosphazane (PNP) ligands that contain 2,3,4,5‐tetraethylphosphole or dibenzophosphole moieties has been synthesised. The new compounds have been screened for chromium‐catalysed, selective ethene oligomerisation by in situ combination with CrCl3(thf)3 and methylaluminoxane (MAO). The ligands derived from 2,3,4,5‐tetraethylphosphole produce highly active catalysts for ethene oligomerisation, which show excellent selectivity to C6 and C8 linear α‐olefins. Complexes of the form [Cr(CO)4L] were synthesised and studied by IR spectroscopy and single‐crystal XRD. Variable‐temperature NMR spectroscopy was used to investigate restricted PN rotation in compounds with bulky nitrogen substituents.
Top hole phosphole! New diphosphazane ligands based on phosphole donors produce highly active catalysts with chromium for the selective oligomerization of ethene. Modification of the backbone nitrogen substituent gives excellent control over the C6/C8 selectivity. MAO=methylaluminoxane. |
| doi_str_mv | 10.1002/cctc.201300306 |
| format | Article |
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Top hole phosphole! New diphosphazane ligands based on phosphole donors produce highly active catalysts with chromium for the selective oligomerization of ethene. Modification of the backbone nitrogen substituent gives excellent control over the C6/C8 selectivity. MAO=methylaluminoxane.</description><identifier>ISSN: 1867-3880</identifier><identifier>EISSN: 1867-3899</identifier><identifier>DOI: 10.1002/cctc.201300306</identifier><language>eng</language><publisher>Weinheim: WILEY-VCH Verlag</publisher><subject>chromium ; homogeneous catalysis ; Ligands ; NMR spectroscopy ; oligomerization ; P ligands ; Spectrum analysis</subject><ispartof>ChemCatChem, 2013-10, Vol.5 (10), p.2946-2954</ispartof><rights>Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3556-16adb8230eb8c264ffb8f1f0664496f71123baac5a42acfbb03d045e51c883d03</citedby><cites>FETCH-LOGICAL-c3556-16adb8230eb8c264ffb8f1f0664496f71123baac5a42acfbb03d045e51c883d03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fcctc.201300306$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fcctc.201300306$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Stennett, Tom E.</creatorcontrib><creatorcontrib>Hey, Thomas W.</creatorcontrib><creatorcontrib>Ball, Liam T.</creatorcontrib><creatorcontrib>Flynn, Stephanie R.</creatorcontrib><creatorcontrib>Radcliffe, James E.</creatorcontrib><creatorcontrib>McMullin, Claire L.</creatorcontrib><creatorcontrib>Wingad, Richard L.</creatorcontrib><creatorcontrib>Wass, Duncan F.</creatorcontrib><title>N,N-Diphospholylamines-A New Family of Ligands for Highly Active, Chromium-Based, Selective Ethene Oligomerisation Catalysts</title><title>ChemCatChem</title><addtitle>ChemCatChem</addtitle><description>A series of new diphosphazane (PNP) ligands that contain 2,3,4,5‐tetraethylphosphole or dibenzophosphole moieties has been synthesised. The new compounds have been screened for chromium‐catalysed, selective ethene oligomerisation by in situ combination with CrCl3(thf)3 and methylaluminoxane (MAO). The ligands derived from 2,3,4,5‐tetraethylphosphole produce highly active catalysts for ethene oligomerisation, which show excellent selectivity to C6 and C8 linear α‐olefins. Complexes of the form [Cr(CO)4L] were synthesised and studied by IR spectroscopy and single‐crystal XRD. Variable‐temperature NMR spectroscopy was used to investigate restricted PN rotation in compounds with bulky nitrogen substituents.
Top hole phosphole! New diphosphazane ligands based on phosphole donors produce highly active catalysts with chromium for the selective oligomerization of ethene. Modification of the backbone nitrogen substituent gives excellent control over the C6/C8 selectivity. MAO=methylaluminoxane.</description><subject>chromium</subject><subject>homogeneous catalysis</subject><subject>Ligands</subject><subject>NMR spectroscopy</subject><subject>oligomerization</subject><subject>P ligands</subject><subject>Spectrum analysis</subject><issn>1867-3880</issn><issn>1867-3899</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFkc9PwjAUxxejiYhePTfxyrBdt9IdcfLDBOEgxsRL05UWituK7RCX-MdbxBBvHl76Xt_38176bRBcI9hFEEa3QtSiG0GEIcSQnAQtREkvxDRNT485hefBhXNrCEmKe0kr-Jp2puG93qyM81E0BS91JV3YB1O5A0NfFQ0wCkz0klcLB5SxYKyXK3_bF7X-kB2Qrawp9bYM77iTiw54koX8aYFBvZKVBLNCL00prXa81qYCGa950bjaXQZnihdOXv2e7eB5OJhn43AyGz1k_UkocJKQEBG-yGmEocypiEisVE4VUpCQOE6J6iEU4ZxzkfA44kLlOcQLGCcyQYJSn-J2cHOYu7HmfStdzdZmayu_kqEYUxLDlGCv6h5UwhrnrFRsY3XJbcMQZHuH2d5hdnTYA-kB2OlCNv-oWZbNs79seGC1q-XnkeX2jZGe_xn2Mh0xjB9fY_9wFuFviVmPGQ</recordid><startdate>201310</startdate><enddate>201310</enddate><creator>Stennett, Tom E.</creator><creator>Hey, Thomas W.</creator><creator>Ball, Liam T.</creator><creator>Flynn, Stephanie R.</creator><creator>Radcliffe, James E.</creator><creator>McMullin, Claire L.</creator><creator>Wingad, Richard L.</creator><creator>Wass, Duncan F.</creator><general>WILEY-VCH Verlag</general><general>WILEY‐VCH Verlag</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201310</creationdate><title>N,N-Diphospholylamines-A New Family of Ligands for Highly Active, Chromium-Based, Selective Ethene Oligomerisation Catalysts</title><author>Stennett, Tom E. ; Hey, Thomas W. ; Ball, Liam T. ; Flynn, Stephanie R. ; Radcliffe, James E. ; McMullin, Claire L. ; Wingad, Richard L. ; Wass, Duncan F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3556-16adb8230eb8c264ffb8f1f0664496f71123baac5a42acfbb03d045e51c883d03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>chromium</topic><topic>homogeneous catalysis</topic><topic>Ligands</topic><topic>NMR spectroscopy</topic><topic>oligomerization</topic><topic>P ligands</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Stennett, Tom E.</creatorcontrib><creatorcontrib>Hey, Thomas W.</creatorcontrib><creatorcontrib>Ball, Liam T.</creatorcontrib><creatorcontrib>Flynn, Stephanie R.</creatorcontrib><creatorcontrib>Radcliffe, James E.</creatorcontrib><creatorcontrib>McMullin, Claire L.</creatorcontrib><creatorcontrib>Wingad, Richard L.</creatorcontrib><creatorcontrib>Wass, Duncan F.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><jtitle>ChemCatChem</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Stennett, Tom E.</au><au>Hey, Thomas W.</au><au>Ball, Liam T.</au><au>Flynn, Stephanie R.</au><au>Radcliffe, James E.</au><au>McMullin, Claire L.</au><au>Wingad, Richard L.</au><au>Wass, Duncan F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>N,N-Diphospholylamines-A New Family of Ligands for Highly Active, Chromium-Based, Selective Ethene Oligomerisation Catalysts</atitle><jtitle>ChemCatChem</jtitle><addtitle>ChemCatChem</addtitle><date>2013-10</date><risdate>2013</risdate><volume>5</volume><issue>10</issue><spage>2946</spage><epage>2954</epage><pages>2946-2954</pages><issn>1867-3880</issn><eissn>1867-3899</eissn><abstract>A series of new diphosphazane (PNP) ligands that contain 2,3,4,5‐tetraethylphosphole or dibenzophosphole moieties has been synthesised. The new compounds have been screened for chromium‐catalysed, selective ethene oligomerisation by in situ combination with CrCl3(thf)3 and methylaluminoxane (MAO). The ligands derived from 2,3,4,5‐tetraethylphosphole produce highly active catalysts for ethene oligomerisation, which show excellent selectivity to C6 and C8 linear α‐olefins. Complexes of the form [Cr(CO)4L] were synthesised and studied by IR spectroscopy and single‐crystal XRD. Variable‐temperature NMR spectroscopy was used to investigate restricted PN rotation in compounds with bulky nitrogen substituents.
Top hole phosphole! New diphosphazane ligands based on phosphole donors produce highly active catalysts with chromium for the selective oligomerization of ethene. Modification of the backbone nitrogen substituent gives excellent control over the C6/C8 selectivity. MAO=methylaluminoxane.</abstract><cop>Weinheim</cop><pub>WILEY-VCH Verlag</pub><doi>10.1002/cctc.201300306</doi><tpages>9</tpages></addata></record> |
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| subjects | chromium homogeneous catalysis Ligands NMR spectroscopy oligomerization P ligands Spectrum analysis |
| title | N,N-Diphospholylamines-A New Family of Ligands for Highly Active, Chromium-Based, Selective Ethene Oligomerisation Catalysts |
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