US 2026/0167651 A1 · METHOD FOR PRODUCING ORGANOSILICON COMPOUND HAVING (METH)ACRYLOXY GROUP, AND ORGANOSILICON COMPOUND HAVING ACRYLOXY GROUP

Abstract

Provided is a production method comprising subjecting a siloxyalkylhalosilane compound represented by general formula (1) (R1 represents a monovalent hydrocarbon group, R2 represents a divalent hydrocarbon group, R3 represents a hydrogen atom or a monovalent hydrocarbon group, R4 represents a monovalent hydrocarbon group, X represents a chlorine atom or a bromine atom, m represents 0, 1, or 2, and n represents 0, 1, 2, or 3) and a carboxylic acid halide represented by general formula (2) (R5 represents a hydrogen atom, a chlorine atom, or a monovalent hydrocarbon, and X is the same as above) to a siloxy-(meth)acryloxy exchange reaction in the presence of at least one metal compound selected from the group consisting of zinc, copper, and iron, to obtain an organosilicon compound having a (meth)acryloxy group, represented by general formula (3) (R2-R5, X, and m are the same as above). In principle, the production method does not produce a (meth)acrylic adduct or a bis-adduct, and stably provides an organosilicon compound having a (meth)acryloxy group in high yield and high purity.

Claims3

Dependent claims

A method for preparing a (meth)acryloxy group-containing organosilicon compound, which method comprises the step of subjecting a siloxyalkylhalosilane compound of general formula (1) below

wherein R1 is an unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, each R2 is independently a substituted or unsubstituted divalent hydrocarbon group of 1 to 20 carbon atoms which may include at least one atom selected from the group consisting of O, S and Si, each R3 is independently a hydrogen atom or an unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms, each R4 is independently an unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms, X is a chlorine atom or a bromine atom, m is 0, 1 or 2, and n is 0, 1, 2 or 3 and a carboxylic acid halide of general formula (2) below
wherein R5 is a hydrogen atom, a chlorine atom or an unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms, and X is as defined above to a siloxy-(meth)acryloxy exchange reaction in the presence of at least one metal compound selected from the group consisting of zinc compounds, copper compounds and iron compounds to obtain a (meth)acryloxy group-containing organosilicon compound of general formula (3) below
wherein R2 to R5, X and m are as defined above.

Dependencies are inferred from the claim text.

Method for producing organosilicon compound having (meth)acryloxy group, and organosilicon compound having acryloxy group

Life of this patent

Method for producing organosilicon compound having (meth)acryloxy group, and organosilicon compound having acryloxy group

Life of this patent

Abstract

Claims3