简介：PolymericGrignardReagent(PGR)basedonthechloromethylatedpoly(ST-co-DVB)resinhasbeenpreparedbymeansofanthracene-magnesiumcomplexinTHF(Anth-Mg-THF),andpolymermatrixwithlongpolymethylenespacerwassynthesizedviathecouplingreactionbetweenPGRandα,ω-dibromoalkanes.Basedonthestudiesoffactorsaffectingthecoupling,suchascatalyst,reactiontime,thelengthofspaceretc.,thispaperofferstheoptimalreactionconditionsandthreetypicalexperimentprocedures.ThemechanismfortheformationandcouplingreactionofPGRarealsodiscussed.

简介：Thecharacteristicsofstyrene-acrylicacidcopolymersupportedlanthanidecomplexes(SAACLn)(Ln=La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tin,Yb,andLu)weredescribed.AcomparisonoftheactivitiesofSAAC·Lnwasmade.Itwasfoundthatinthepolymerizationofbutadiene,apeakinactivityappearedatNdandPr,Sin,Euandtheheavylanthanidesexhibitedlowornoactivities.Theeffectsofsomefactorsontheactivitieswerediscussed.Themicrostructureofthepolymersobtainedwithallthelanthanidesintheserieswerethesameandthecontentofcis-1,4polybutadieneattainedwasmorethan98%.

简介：(乙烯乙二醇)(木钉)Poly支持了dendrimers与高由分叉的方法装载能力，优秀溶解度和热稳定性作为连接器作为dendrons和tris(hydroxymethyl)aminomethane用2,4,6-trichloro-1,3,5-triazine(TCT)被综合了。新综合支持木钉的G2.0dendrimer让同样大的功能的组10次与全面产量作为商业PEG3400装载能力44.0%。

简介：Aneficientliquid-phasesynthesisofisoxazolinesthrougha1,3-dipolarcycloadditionisdescribed.Solublepolymer-supportedacrylatereactedwithnitrileoxidesgeneratedin-situ,followedbycleavagefromthesupportgivingcorrespondingisoxazolinesinhighyieldsandexcellentpurities.

简介：Fourpolymer-supportedFe-Cotetrametallicclustershavebeenpreparedbyionexchangeandligandexchange.TheirstructureswerecharacterizedbyIR,UV/visiblediffusereflectancespectraandelementalanalysis,andbyanalogywiththereferenceclusterPhCH2NMe3FeCo3（CO）2.Thefourheterogenousclusterswereefficientcatalystsinthehydroformylationof1-hexene,turnovernumbersamountedto823—924withtheyieldof83.2—92.4%heptylaldehydesandratiosofnormalaldehydetoiso-aldehydeof1.2—1.6,theyarefacilitatedformingthenormalaldehydeincomparisonwiththehomogeneousanalogue.Forthepolymer-supportedclusterspreparedbyionexchange,thepolymer-cationpartshadnoobviouseffectontheactivityoftheclusteranion.Thepolymer-phosphinesubstitutedclusterpreparedbyligandexchangewasmorestablethantheclusterspreparedbyionexchange.

简介：Aseriesofpolymer-supportedtetranuclearrhodiumcarbonylclustercatalystswerepreparedbthereactionofRh4（CO）12withseveralkindsofpolymersupportssuchascrosslinkedpoly（N-vinylpyrrolidone）（PNVP）andcrosslinkedpoly（styrene-co-maleicanhydride）（PMAn）,andsubsequentlywereusedtocatalyzethehydroformylationofolefins.ThecatalystswerecharacterizedbyIR,SEMandXPS.Theinfluenceofthesupportsstructureandcrosslinking,metal’scontentandparticlesizeofthesupportsonthecatalystshydroformylationpropertieswasstudied.Thefactorswhichaffectthecatalyticconversionwerealsoexamined.Theexperimentalresultsshowthatthepolymer-supportedRhclustercatalystspossessveryhighcatalyticactivityandaldehydeselectivityaswellasgoodreproducibility.

简介：Somestructurealfactorstothedesignofpolymer-supportedChiralCatalystsarediscussed.andsomenewapprachesfordesigningofpolymer-supportedcatalystsarereviewedinthispaper.

简介：ThesupportedRh-DIOPcomplexeswerepreparedthroughfunctionalizationofseveralmacroporouspolystyreneresinsndwereevaluatedbythehydrogenationofacetamidocinnamicacidinEtOH.Theporeeffectofthematrixeswasdiscussed.

简介：Abicentralpolymer-supportedphasetransfercatalyst,polystyrene-supportedpolyethyleneglycolandpyridiniumsalt(PS-Py-PEG-400),synthesizedwithchloromethylatedpolystyreneassupporteronwhichPEGandpyridiniumsaltwereimmobilizedsuccessively.ItscatalyticactivitywastestedforthereactionofsolidpotassiumacetateandbenzylbromidebyGCanalysis.ItwasfoundthatthebicentralcatalystperformedhigheractivitythanthemonocentralPS-PEG-400andPS-Py.

简介：Asymmetrichydrisilylationcatalyzedbypolymericthiazolidinerhodiumcatalystswasconducted.Almostthesameopticalyieldshavebeenobtainedwhencomb-shapedpolymericligandsandtheircorrespondingmonomercomplexedrhodiumcataltystswereusedtoasymmetrichydrosilylationofacetophenone.Opticalyieldofchiral1-methylbenzylalcoholreachesashighas71.5%.Temperaturedependenceofenantioselectivehydrosilylationofacetophenonewasdiscussed.

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简介：Twokindsofrhodiumcatalystssupportedoncross-linkedstyrene-divinylbenzenecopolymerscontainingbipyridineoro-phenylenediaminehavebeenpreparedandfoundtodisplayhighactivityformethylacetatecarbonylationtoformaceticanhydride,theactivitiesareevenhigherthantheirhomogeneouscounterparts.XPSanalysiswasusedtocharacterizethesyntheticcatalysts.TheapparentactivationparametersweredeterminedtobeEα=73.3KJ/mol,ΔH^≠=66.3KJ/mol,ΔS^≠=-28.6eu.Theseparametersareveryclosetothoseinmethanolcarbonylationandimplytohaveanalogousmechanisminbothcases.

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简介：Inthisstudywastoinvestigate,byphase-transfercatalysis,theactivityofsingleandmixedammoniumandphosphoniumsaltsgraftedona"gel-type"styrene-7%divinylbenzenecopolymerintheoxidationofbenzylalcoholwithhydrogenperoxide.Awidevarietyofcatalystswithdifferentquaternarygroupsanddifferentquaternarychainlengthsubstituentswereexamined.Theactivityofsingle"onium"saltsincreasesasaconsequenceoftheassociationofammoniumandphosphoniumsaltsgraftedonthesamepolymericsupport.Theactivityofpolymer-supportedammoniumandphosphoniumsaltsincreaseswiththenumberofcarbonatomscontainedinthealkylradicalsofthe-oniumandofthefunctionalizationdegreewithphosphoniumgroups.

简介：Copolymerofstyrene-divinylbenzeneinbeadfromwasmadebysuspensionpolymerization.Afterchloromethylationandamination,fivekindsofpolymericamineswerethusobtained.Thesepolymerswerereactedwithpalladiumchloride,andwerethenreduced.Thepolymer-supportedcatalystssynthesizedabovewereusedtocatalyzetheselectivehydrogenationofmesityloxideunderreactionconditionsof80℃and10kg/cm^2,usingmethanolasasolvent.ThecatalyticactivityandMIBK(methylisobutylketone)formationselectivityofthecatalystswereexamined.

简介：用ellipsometry，它被发现纺纱涂的polyacrylamide(PAL)的玻璃转变温度支持的硅(Si)上的薄电影有氧化物层的底层有减少的减少电影厚度。但是T<潜水艇class=“a-plus-plus”>g同样准备的薄电影的s比体积样品的高得多。如此的观察能被归因于在PAL之间的效果和增加的氢结合相互作用由于旋转coating/thin电影监禁锁住的表面的联合结果。

简介：Polymer-supportedRCpCpTiCl2(Cp=η^5-C5H4;RCp=η^5-RC5H4)havebeenpreparedandreducedbyi-C3H7MgBrinsitu，thenusedincatalyticisomerizationof1,5-hexadiene.Theisomerizationof1,5-hexadieneleadstoamixtureofcyclicandlinearproducts.Theratioofcyclictolinearproductdependsonthenatureofthesupporterandthesubstituentonthecyclopentadienylring.Theformercontributesthemost,forexample,silicasupportedCp2TiCl2gavecyclic-linearratioof99/1,whileforpolymer-supportedCp2TiCl2species,linearcompoundsarethemajorproductsandtheratioofcyclictolinearproductchangeswithdifferentRgroupsonthecyclopentadienylring.

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