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镍催化下酯的脱羰硼、硅化反应研究 Title:AStudyontheDecarbonylationandSilacarboxylationReactionsofEstersCatalyzedbyNickel Abstract: Transitionmetal-catalyzeddecarbonylationandsilacarboxylationreactionshaveattractedsignificantattentioninrecentyearsduetotheirpotentialapplicationsinorganicsynthesis.Amongthetransitionmetals,nickelhasemergedasanefficientcatalystforthesetransformations.Thisstudyexploresthedecarbonylationandsilacarboxylationreactionsofestersundernickelcatalysis,evaluatingthereactionconditions,mechanisms,andthescopeandlimitationsofthemethodology.Theresultsobtainedinthisstudycanprovidevaluableinsightsintothedevelopmentofnewstrategiesfororganictransformationsmediatedbynickelcatalysis. 1.Introduction: 1.1TransitionMetal-CatalyzedReactions: Transitionmetal-catalyzedreactionshaverevolutionizedsyntheticchemistrybyenablingtheconstructionofcomplexorganicmolecules.Amongthesereactions,decarbonylationandsilacarboxylationreactionshavegainedconsiderablepopularityduetotheirabilitytointroducenewfunctionalgroupsintoorganicsubstrates. 1.2Motivation: Nickelcatalystshaverecentlyshownexcellentefficiencyinpromotingdecarbonylationandsilacarboxylationreactionsofesters.Extensiveresearchexploringthereactionconditions,mechanisms,andsubstratescopeundernickelcatalysiscanpotentiallyexpandtheutilityofthesetransformations,allowingfortherapidconstructionofimportantorganicframeworks. 2.ExperimentalDetails: 2.1Materials: Theestersusedinthisstudywereobtainedcommercially.Nickelcatalystsandotherreagentswerepurchasedfromreliablesuppliersandusedwithoutfurtherpurification. 2.2ReactionConditions: Thereactionconditionsfordecarbonylationandsilacarboxylationreactionsofesterswereexploredundervariousparameters,includingtemperature,catalystloading,solvent,andreactiontime.Optimizationstudieswereperformedtoachievethehighestyieldandselectivity. 2.3Characterization: Theprogressofthereactionsandtheidentificationofreactionproductsweremonitoredbyvarioustechniques,includinggaschromatography-massspectrometry(GC-MS),nuclearmagneti