α‐Diimine–Palladium Complexes Incorporated in Vinylic‐Addition Polynorbornenes: Synthesis and Catalytic Activity
α‐Diimine polymeric ligands have been synthesized using the bicyclic norbornane structure, present in vinylic‐addition polynorbornene (VA‐PNB). The VA‐PNB–diimine ligands have been prepared by functionalization of the copolymer obtained by Ni‐catalyzed polymerization of norbornene and norbornenylcar...
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Veröffentlicht in: | European journal of inorganic chemistry 2017-06, Vol.2017 (22), p.2911-2919 |
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description | α‐Diimine polymeric ligands have been synthesized using the bicyclic norbornane structure, present in vinylic‐addition polynorbornene (VA‐PNB). The VA‐PNB–diimine ligands have been prepared by functionalization of the copolymer obtained by Ni‐catalyzed polymerization of norbornene and norbornenylcarbonate. Immobilized palladium complexes of the type VA‐PNB–diimine–PdX2 have been prepared, and their catalytic activity has been tested. The trifluoroacetato complex (X = CF3COO) can be used as a recyclable precatalyst in the Suzuki reaction. It is the source of minute amounts of homogeneous palladium active species, which carry out the catalysis with high turnover numbers. The recovered polymeric complex can be reused several times with no significant loss of activity. The polymeric analogue to Brookhart's catalyst, VA‐PNB–diimine–PdMeCl, can also polymerize ethylene, although it is less active than its monomeric counterparts.
Vinylic‐addition polynorbornene embraces α‐diimine ligands, incorporated in the polycyclic backbone of the polymer, and leads to palladium complexes that can be used as recyclable catalysts in cross‐coupling reactions. |
doi_str_mv | 10.1002/ejic.201700323 |
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Vinylic‐addition polynorbornene embraces α‐diimine ligands, incorporated in the polycyclic backbone of the polymer, and leads to palladium complexes that can be used as recyclable catalysts in cross‐coupling reactions.</description><identifier>ISSN: 1434-1948</identifier><identifier>EISSN: 1099-0682</identifier><identifier>DOI: 10.1002/ejic.201700323</identifier><language>eng</language><subject>Cross‐coupling ; Diimines ; Palladium ; Polynorbornenes ; Supported catalysts</subject><ispartof>European journal of inorganic chemistry, 2017-06, Vol.2017 (22), p.2911-2919</ispartof><rights>2017 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3293-2c6a4a6cd47f7c0f2d371ecf593a60ff22ee6bd813a40fba435442752e8e60f83</citedby><cites>FETCH-LOGICAL-c3293-2c6a4a6cd47f7c0f2d371ecf593a60ff22ee6bd813a40fba435442752e8e60f83</cites><orcidid>0000-0002-4134-1333</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fejic.201700323$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fejic.201700323$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Molina de la Torre, Jesús A.</creatorcontrib><creatorcontrib>Albéniz, Ana C.</creatorcontrib><title>α‐Diimine–Palladium Complexes Incorporated in Vinylic‐Addition Polynorbornenes: Synthesis and Catalytic Activity</title><title>European journal of inorganic chemistry</title><description>α‐Diimine polymeric ligands have been synthesized using the bicyclic norbornane structure, present in vinylic‐addition polynorbornene (VA‐PNB). The VA‐PNB–diimine ligands have been prepared by functionalization of the copolymer obtained by Ni‐catalyzed polymerization of norbornene and norbornenylcarbonate. Immobilized palladium complexes of the type VA‐PNB–diimine–PdX2 have been prepared, and their catalytic activity has been tested. The trifluoroacetato complex (X = CF3COO) can be used as a recyclable precatalyst in the Suzuki reaction. It is the source of minute amounts of homogeneous palladium active species, which carry out the catalysis with high turnover numbers. The recovered polymeric complex can be reused several times with no significant loss of activity. The polymeric analogue to Brookhart's catalyst, VA‐PNB–diimine–PdMeCl, can also polymerize ethylene, although it is less active than its monomeric counterparts.
Vinylic‐addition polynorbornene embraces α‐diimine ligands, incorporated in the polycyclic backbone of the polymer, and leads to palladium complexes that can be used as recyclable catalysts in cross‐coupling reactions.</description><subject>Cross‐coupling</subject><subject>Diimines</subject><subject>Palladium</subject><subject>Polynorbornenes</subject><subject>Supported catalysts</subject><issn>1434-1948</issn><issn>1099-0682</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkEtKA0EURQtRMEanjmsDHeuX_jgLbdRIwICfaVOpD75QqQpd7adnWYLgStyIi8hK7BDRoaN34d1zBwehU0oGlBB2ZhagBozQjBDO-B7qUVIUCUlztt9lwUVCC5EfoqMYF6TrEJ720OvX52b9fgGwBG8264-ZdE5qeF7iMixXzryZiCdehXoVatkYjcHjR_CtA9VxI62hgeDxLLjWh3oeam-8ief4rvXNk4kQsfQal7KRrm1A4ZFq4AWa9hgdWOmiOfm5ffRwOb4vr5Pp7dWkHE0TxVnBE6ZSKWSqtMhspohlmmfUKDssuEyJtYwZk851TrkUxM6l4EMhWDZkJjfdP-d9NNjtqjrEWBtbrWpYyrqtKKm22qqttupXWwcUO-AVnGn_aVfjm0n5x34DQGR4Pg</recordid><startdate>20170616</startdate><enddate>20170616</enddate><creator>Molina de la Torre, Jesús A.</creator><creator>Albéniz, Ana C.</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-4134-1333</orcidid></search><sort><creationdate>20170616</creationdate><title>α‐Diimine–Palladium Complexes Incorporated in Vinylic‐Addition Polynorbornenes: Synthesis and Catalytic Activity</title><author>Molina de la Torre, Jesús A. ; Albéniz, Ana C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3293-2c6a4a6cd47f7c0f2d371ecf593a60ff22ee6bd813a40fba435442752e8e60f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Cross‐coupling</topic><topic>Diimines</topic><topic>Palladium</topic><topic>Polynorbornenes</topic><topic>Supported catalysts</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Molina de la Torre, Jesús A.</creatorcontrib><creatorcontrib>Albéniz, Ana C.</creatorcontrib><collection>CrossRef</collection><jtitle>European journal of inorganic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Molina de la Torre, Jesús A.</au><au>Albéniz, Ana C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>α‐Diimine–Palladium Complexes Incorporated in Vinylic‐Addition Polynorbornenes: Synthesis and Catalytic Activity</atitle><jtitle>European journal of inorganic chemistry</jtitle><date>2017-06-16</date><risdate>2017</risdate><volume>2017</volume><issue>22</issue><spage>2911</spage><epage>2919</epage><pages>2911-2919</pages><issn>1434-1948</issn><eissn>1099-0682</eissn><abstract>α‐Diimine polymeric ligands have been synthesized using the bicyclic norbornane structure, present in vinylic‐addition polynorbornene (VA‐PNB). The VA‐PNB–diimine ligands have been prepared by functionalization of the copolymer obtained by Ni‐catalyzed polymerization of norbornene and norbornenylcarbonate. Immobilized palladium complexes of the type VA‐PNB–diimine–PdX2 have been prepared, and their catalytic activity has been tested. The trifluoroacetato complex (X = CF3COO) can be used as a recyclable precatalyst in the Suzuki reaction. It is the source of minute amounts of homogeneous palladium active species, which carry out the catalysis with high turnover numbers. The recovered polymeric complex can be reused several times with no significant loss of activity. The polymeric analogue to Brookhart's catalyst, VA‐PNB–diimine–PdMeCl, can also polymerize ethylene, although it is less active than its monomeric counterparts.
Vinylic‐addition polynorbornene embraces α‐diimine ligands, incorporated in the polycyclic backbone of the polymer, and leads to palladium complexes that can be used as recyclable catalysts in cross‐coupling reactions.</abstract><doi>10.1002/ejic.201700323</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-4134-1333</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Cross‐coupling Diimines Palladium Polynorbornenes Supported catalysts |
title | α‐Diimine–Palladium Complexes Incorporated in Vinylic‐Addition Polynorbornenes: Synthesis and Catalytic Activity |
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