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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Synthesis,characterization,andapplicationofsilicasupportedionicliquidascatalystforreductiveaminationofcyclohexanonewithformicacidandtriethylamineashydrogensource
DOI: 10.1016/S1872-2067(15)60848-8, PP. 1365-1371
Keywords: Supportedionicliquidphase,Catalyst,Reductiveamination,Cyclohexanone,Ionicliquids
Abstract:
？Asilicasupportedionicliquidwassynthesizedandcharacterizedbyscanningelectronmicroscopy(SEM),Fouriertransforminfraredspectroscopy,X-raydiffraction,N2adsorption-desorption,andthermogravimetricanalysis.Allthesetechniques,especiallySEMresultsindicatedthepresenceofwell-definedsphericalparticleshavingdiameterslargerthanthepristinesilicaparticles,confirmingthesuccessfulimmobilizationoftheionicliquid.Thepreparedsilicasupportedionicliquidwasusedinthereductiveaminationofcyclohexanoneunderdifferentconditionswithdifferentazeotropicmixturesofformicacidandtriethylamineasahydrogensource.ThecatalystshowedefficientcatalyticperformanceandexcellentyieldsofN-cyclohexylaminederivativesintherangeof58%to84%at30℃.Aftercompletionofthereaction,thecatalystwaseasilyrecoveredbysimplefiltrationandreusedforanotherfivecycleswithoutanysignificantimpactonproductyields.Theobtainedcatalyticperformanceindicatesthatthepresentcatalystisgreen,veryactive,andreusableforthereductiveaminationofcyclohexanone.
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