Development of efficient methods for the immobilisation of multicomponent asymmetric catalysts

Immobilisation of multicomponent asymmetric catalysts has been achieved utilizing soluble polymers and dendrimers containing BINOL ligands. A novel approach based on the use of "catalyst analogue" helps to position the ligands suitably on the polymer backbone. Utilizing metal-bridged polym...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Journal of experimental nanoscience 2006-12, Vol.1 (4), p.477-510
Hauptverfasser:	Jayaprakash, Doss, Takizawa, Shinobu, Arai, Takayoshi, Sasai, Hiroaki
Format:	Artikel
Sprache:	eng
Schlagworte:	Asymmetric catalysts Dendrimer Immobilisation Polymers Self-assembly
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

container_end_page	510
container_issue	4
container_start_page	477
container_title	Journal of experimental nanoscience
container_volume	1
creator	Jayaprakash, Doss Takizawa, Shinobu Arai, Takayoshi Sasai, Hiroaki
description	Immobilisation of multicomponent asymmetric catalysts has been achieved utilizing soluble polymers and dendrimers containing BINOL ligands. A novel approach based on the use of "catalyst analogue" helps to position the ligands suitably on the polymer backbone. Utilizing metal-bridged polymers, a simple and efficient method for immobilisation without the need for a polymer support has also been realized. Heterogeneous Al-Li-bis(binaphthoxide) and μ-oxodititanium complexes thus obtained have been used as catalysts for the asymmetric Michael addition and the asymmetric carbonyl-ene reactions respectively. The catalysts displayed high activity affording the corresponding products with high enantiomeric excesses. In many cases, the catalysts could be recovered and reused.
doi_str_mv	10.1080/17458080601067690
format	Article
fullrecord	<record><control><sourceid>proquest_infor</sourceid><recordid>TN_cdi_proquest_miscellaneous_28965889</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>28965889</sourcerecordid><originalsourceid>FETCH-LOGICAL-c377t-7769a8d81a2d6019634033814b37bed7f85138a2abc7dcf6de40d28211cec7763</originalsourceid><addsrcrecordid>eNqFkE1LxDAQhoMouK7-AG89easmTduk4EXWTxC86NWQ5oONJE1Nsmr_vSkrXhb0NO8M7zPMvACcIniOIIUXiNQNzaKFCLak7eAeWMyzksKu2__VFB6CoxjfIKxr2pAFeL1WH8r60akhFV4XSmsjzNw4ldZexkL7UKS1KoxzvjfWRJ6MH2av29hkhHejH2aAx8llKBhRCJ64nWKKx-BAcxvVyU9dgpfbm-fVffn4dPewunosBSYklSRfzKmkiFcyf9C1uIYYU1T3mPRKEk0bhCmveC-IFLqVqoayohVCQokM4yU42-4dg3_fqJiYM1Eoa_mg_CayinZtQ2mXjWhrFMHHGJRmYzCOh4khyOYk2U6SmbncMmbIYTj-6YOVLPHJ-qADH4SJDP-Fk3_xHYqlr4S_AQVEjWE</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>28965889</pqid></control><display><type>article</type><title>Development of efficient methods for the immobilisation of multicomponent asymmetric catalysts</title><source>EZB-FREE-00999 freely available EZB journals</source><creator>Jayaprakash, Doss ; Takizawa, Shinobu ; Arai, Takayoshi ; Sasai, Hiroaki</creator><creatorcontrib>Jayaprakash, Doss ; Takizawa, Shinobu ; Arai, Takayoshi ; Sasai, Hiroaki</creatorcontrib><description>Immobilisation of multicomponent asymmetric catalysts has been achieved utilizing soluble polymers and dendrimers containing BINOL ligands. A novel approach based on the use of "catalyst analogue" helps to position the ligands suitably on the polymer backbone. Utilizing metal-bridged polymers, a simple and efficient method for immobilisation without the need for a polymer support has also been realized. Heterogeneous Al-Li-bis(binaphthoxide) and μ-oxodititanium complexes thus obtained have been used as catalysts for the asymmetric Michael addition and the asymmetric carbonyl-ene reactions respectively. The catalysts displayed high activity affording the corresponding products with high enantiomeric excesses. In many cases, the catalysts could be recovered and reused.</description><identifier>ISSN: 1745-8080</identifier><identifier>EISSN: 1745-8099</identifier><identifier>DOI: 10.1080/17458080601067690</identifier><language>eng</language><publisher>Taylor & Francis Group</publisher><subject>Asymmetric catalysts ; Dendrimer ; Immobilisation ; Polymers ; Self-assembly</subject><ispartof>Journal of experimental nanoscience, 2006-12, Vol.1 (4), p.477-510</ispartof><rights>Copyright Taylor & Francis Group, LLC 2006</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c377t-7769a8d81a2d6019634033814b37bed7f85138a2abc7dcf6de40d28211cec7763</citedby><cites>FETCH-LOGICAL-c377t-7769a8d81a2d6019634033814b37bed7f85138a2abc7dcf6de40d28211cec7763</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Jayaprakash, Doss</creatorcontrib><creatorcontrib>Takizawa, Shinobu</creatorcontrib><creatorcontrib>Arai, Takayoshi</creatorcontrib><creatorcontrib>Sasai, Hiroaki</creatorcontrib><title>Development of efficient methods for the immobilisation of multicomponent asymmetric catalysts</title><title>Journal of experimental nanoscience</title><description>Immobilisation of multicomponent asymmetric catalysts has been achieved utilizing soluble polymers and dendrimers containing BINOL ligands. A novel approach based on the use of "catalyst analogue" helps to position the ligands suitably on the polymer backbone. Utilizing metal-bridged polymers, a simple and efficient method for immobilisation without the need for a polymer support has also been realized. Heterogeneous Al-Li-bis(binaphthoxide) and μ-oxodititanium complexes thus obtained have been used as catalysts for the asymmetric Michael addition and the asymmetric carbonyl-ene reactions respectively. The catalysts displayed high activity affording the corresponding products with high enantiomeric excesses. In many cases, the catalysts could be recovered and reused.</description><subject>Asymmetric catalysts</subject><subject>Dendrimer</subject><subject>Immobilisation</subject><subject>Polymers</subject><subject>Self-assembly</subject><issn>1745-8080</issn><issn>1745-8099</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouK7-AG89easmTduk4EXWTxC86NWQ5oONJE1Nsmr_vSkrXhb0NO8M7zPMvACcIniOIIUXiNQNzaKFCLak7eAeWMyzksKu2__VFB6CoxjfIKxr2pAFeL1WH8r60akhFV4XSmsjzNw4ldZexkL7UKS1KoxzvjfWRJ6MH2av29hkhHejH2aAx8llKBhRCJ64nWKKx-BAcxvVyU9dgpfbm-fVffn4dPewunosBSYklSRfzKmkiFcyf9C1uIYYU1T3mPRKEk0bhCmveC-IFLqVqoayohVCQokM4yU42-4dg3_fqJiYM1Eoa_mg_CayinZtQ2mXjWhrFMHHGJRmYzCOh4khyOYk2U6SmbncMmbIYTj-6YOVLPHJ-qADH4SJDP-Fk3_xHYqlr4S_AQVEjWE</recordid><startdate>20061201</startdate><enddate>20061201</enddate><creator>Jayaprakash, Doss</creator><creator>Takizawa, Shinobu</creator><creator>Arai, Takayoshi</creator><creator>Sasai, Hiroaki</creator><general>Taylor & Francis Group</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20061201</creationdate><title>Development of efficient methods for the immobilisation of multicomponent asymmetric catalysts</title><author>Jayaprakash, Doss ; Takizawa, Shinobu ; Arai, Takayoshi ; Sasai, Hiroaki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c377t-7769a8d81a2d6019634033814b37bed7f85138a2abc7dcf6de40d28211cec7763</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Asymmetric catalysts</topic><topic>Dendrimer</topic><topic>Immobilisation</topic><topic>Polymers</topic><topic>Self-assembly</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jayaprakash, Doss</creatorcontrib><creatorcontrib>Takizawa, Shinobu</creatorcontrib><creatorcontrib>Arai, Takayoshi</creatorcontrib><creatorcontrib>Sasai, Hiroaki</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of experimental nanoscience</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jayaprakash, Doss</au><au>Takizawa, Shinobu</au><au>Arai, Takayoshi</au><au>Sasai, Hiroaki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Development of efficient methods for the immobilisation of multicomponent asymmetric catalysts</atitle><jtitle>Journal of experimental nanoscience</jtitle><date>2006-12-01</date><risdate>2006</risdate><volume>1</volume><issue>4</issue><spage>477</spage><epage>510</epage><pages>477-510</pages><issn>1745-8080</issn><eissn>1745-8099</eissn><abstract>Immobilisation of multicomponent asymmetric catalysts has been achieved utilizing soluble polymers and dendrimers containing BINOL ligands. A novel approach based on the use of "catalyst analogue" helps to position the ligands suitably on the polymer backbone. Utilizing metal-bridged polymers, a simple and efficient method for immobilisation without the need for a polymer support has also been realized. Heterogeneous Al-Li-bis(binaphthoxide) and μ-oxodititanium complexes thus obtained have been used as catalysts for the asymmetric Michael addition and the asymmetric carbonyl-ene reactions respectively. The catalysts displayed high activity affording the corresponding products with high enantiomeric excesses. In many cases, the catalysts could be recovered and reused.</abstract><pub>Taylor & Francis Group</pub><doi>10.1080/17458080601067690</doi><tpages>34</tpages></addata></record>
fulltext	fulltext
identifier	ISSN: 1745-8080
ispartof	Journal of experimental nanoscience, 2006-12, Vol.1 (4), p.477-510
issn	1745-8080 1745-8099
language	eng
recordid	cdi_proquest_miscellaneous_28965889
source	EZB-FREE-00999 freely available EZB journals
subjects	Asymmetric catalysts Dendrimer Immobilisation Polymers Self-assembly
title	Development of efficient methods for the immobilisation of multicomponent asymmetric catalysts
url	https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T09%3A43%3A47IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_infor&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Development%20of%20efficient%20methods%20for%20the%20immobilisation%20of%20multicomponent%20asymmetric%20catalysts&rft.jtitle=Journal%20of%20experimental%20nanoscience&rft.au=Jayaprakash,%20Doss&rft.date=2006-12-01&rft.volume=1&rft.issue=4&rft.spage=477&rft.epage=510&rft.pages=477-510&rft.issn=1745-8080&rft.eissn=1745-8099&rft_id=info:doi/10.1080/17458080601067690&rft_dat=%3Cproquest_infor%3E28965889%3C/proquest_infor%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=28965889&rft_id=info:pmid/&rfr_iscdi=true