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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Nano-sizedsilicasupportedFeCl3asanefficientheterogeneouscatalystforthesynthesisof1,2,4-triazinederivatives
DOI: 10.1016/S1872-2067(15)60829-4, PP. 620-625
Keywords: Nano-sizedsilicasupportedFeCl3,Multicomponentreactions,1,2,4-Triazines,α,β-Dicarbonylcompounds,Semicarbazide,Thiosemicarbazide
Abstract:
？Theone-potsynthesisofaseriesof1,2,4-triazinesfromthereactionsofsemicarbazideorthiosemicarbazidewithvariousα,β-dicarbonylcompoundsunderrefluxconditionsinaEtOH-H2O(9:1)mixtureassolventandcatalyzedbynano-sizedsilicasupportedFeCl3(FeCl3@SiO2)wasinvestigated.TheFeCl3contentofthecatalystwasmeasuredbyatomicabsorptiontogettheadsorptioncapacity.Thereactionsgavehighyieldsoftheproductandthecatalystwaseasilyseparatedandreusedforsuccessivereactionrunswithoutsignificantlossofactivity.
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