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催化学报 2011
EnantioselectiveCycloetherificationinaMicellarCatalysisSystemDOI: 10.1016/S1872-2067(10)60169-6, PP. 231-234 Keywords: enantioselectivecycloetherification,dihydrobenzofuranderivative,micellarcatalysis Abstract: ？Theenantioselectivecycloetherificationofsubstitutedketophenolsintotheircorrespondingdihydrobenzofuranderivativeswascarriedoutusinghydrogenperoxideandchiralquaternaryammoniumiodideinmicellarmedia.Thisapproachincreasedtheconversionrateofcycloetherificationandalsowidenedthescopeofthisparticularreactionforvarioussubstitutedketophenolswithelectronwithdrawingaswellaselectrondonatingfunctionalities.Theuseofasurfactantinthecycloetherificationreactionincreasedtheyieldofthecorrespondingenantioselectivedihydrobenzofuranfourtimes.Theconversionrateofketophenolsintotheircorrespondingdihydrobenzofuranderivativeswasproportionaltotheconcentrationofthesurfactantusedinthereaction.
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