Preparation method of trifluoromethanesulfonic acid trimethylsilyl ester

The invention relates to a preparation method of trifluoromethanesulfonic acid trimethylsilyl ester. The preparation method comprises the following steps of: adding trifluoromethanesulfonate into a silylation reagent according to the molar ratio of 1:(1.5-4), keeping the reaction temperature at -15...

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Bibliographic Details
Main Authors WEI WEIQUN, CHEN HONGBIN
Format Patent
LanguageChinese
English
Published 06.02.2013
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to a preparation method of trifluoromethanesulfonic acid trimethylsilyl ester. The preparation method comprises the following steps of: adding trifluoromethanesulfonate into a silylation reagent according to the molar ratio of 1:(1.5-4), keeping the reaction temperature at -15 DEG C-40 DEG C, adding a calcium chloride drying pipe on a reflux condensing pipe, performing stirring reaction for 1-10h, and finally rectifying and collecting products obtained at the temperature of 135 DEG C-145 DEG C. The preparation method of the trifluoromethanesulfonic acid trimethylsilyl ester, disclosed by the invention, has the characteristics of simplicity, quickness and easiness in operation; although trimethylchlorosilane also contains dimethylchlorosilane impurities, the trimethylchlorosilane can inhibit the dimethylchlorosilane and other impurities from reacting with trifluoromethanesulfonic acid; and furthermore, the trimethylchlorosilane can react with the trifluoromethanesulfonate, the dimethylchl
Bibliography:Application Number: CN20121467161