PRODUCTION OF TRIMETHYLSILOXYALKYL (METH)ACRYLATE

PROBLEM TO BE SOLVED: To enable the obtaining of the subject high-purity compound in high yield without using a large excessive amount of hexamethyldisilazane by silylating a specific raw material with the hexamethyldisilazane and then reacting the unreacted raw material with a specific silylating a...

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Bibliographic Details
Main Authors UOHAMA MISAO, SAKAI JUNICHI
Format Patent
LanguageEnglish
Published 16.06.1998
Edition6
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:PROBLEM TO BE SOLVED: To enable the obtaining of the subject high-purity compound in high yield without using a large excessive amount of hexamethyldisilazane by silylating a specific raw material with the hexamethyldisilazane and then reacting the unreacted raw material with a specific silylating agent. SOLUTION: (A) A compound represented by the formula (R is H or methyl; R' is a 1-4C alkyl) [e.g. 2-hydroxyethyl (meth)acrylate] is reacted with (B) hexamethyldisilazane at 25-110 deg.C temperature and the unreacted component A is then reacted with (C) a trimethylsilylating agent having a higher activity for the component A than that of the component B (e.g. trimethylsilyl chloride) preferably in the presence of (D) a base. The reaction is preferably carried out in the absence of a solvent by using the component C in an amount of 0.5-2.5mol based on 1.0mol unreacted component A.
Bibliography:Application Number: JP19960314774