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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Main Authors | , |
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Format | Patent |
Language | Chinese English |
Published |
06.02.2013
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Subjects | |
Online Access | Get full text |
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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 |
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Bibliography: | Application Number: CN20121467161 |