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时间:2017-12-08
《有机氟化学合成技巧6》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ElectrofluorinationofOrganicCompoundsFredG.DrakesmithConsultant,EATechnologyLtd.,Capenhurst,Chester,CH16ES,UK.E-mail:FGDrakesmith@compuserve.comThethreeprincipalelectrochemicalmethodsaredescribedbywhichfluorinecanbedirectlyintroducedintoorganiccompounds,namelyelectrolysisinmoltensalt
2、sorfluorideionsolutions,electrolysisinmoltenpotassiumfluoride/hydrogenfluoridemeltsatporousanodes,andelectrolysisinanhydroushydrogenfluorideatnickelanodes.Usingexamplesfromthepastdecade,itisaimedtodemonstratethatelectrofluorinationinitsvariousformshasprovedtobeanincreasinglyversatile
3、toolintherepertoireofthesyntheticchemist.Eachmethodisdescribedintermsofitsessentialcharacteristics,reactionparameters,syntheticutility,advantagesanddisadvantages,patentprotection,andpotentialforcommercialexploitation.Thedifferentmechanismsproposedtoexplaineachprocessarecriticallyrevi
4、ewed.Keywords:Electro-;Simons;Anodic;Fluroination;Electron-transfer.1Introduction...............................1982ElectrolysisinMoltenFluorideSaltsorFluorideIonSolutions..1992.1AlkeneDerivatives...........................2002.2AromaticCompounds.........................2012.3Benzyli
5、cCompounds..........................2052.4AldehydicCompounds.........................2052.5CompoundsContainingHetero-Atoms................2062.6ThioacetalCompounds.........................2082.7Lignins..................................2092.8CyclicKetones..............................
6、2093ElectrolysisinMoltenPotassiumFluoride/HydrogenFluorideataPorousAnode......................2103.1Equipment................................2103.2OperationalComplexities.......................2113.3SyntheticUtilityandMechanism...................2124ElectrolysisinAnhydrousHydrogenFlu
7、orideatNickelAnodes..2134.1ChemistrytoExpandtheSyntheticScopeofECF..........2144.1.1Amines..................................2144.1.2Amino-Ethers..............................2204.1.3NitrogenContainingCarboxylicAcids................221TopicsinCurrentChemistry,Vol.193©SpringerVerlagBer
8、linHeidelber
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