JP2006137727A5 - - Google Patents

Description

Claims (2)

下記式（１−１）または式（１−２）で表される化合物を、酸の存在下、メタクリル酸またはアクリル酸と反応させる下記式（２−１）または式（２−２）の（メタ）アクリル酸エステルの製造方法。A compound of the following formula (2-1) or the formula (2-2) in which a compound represented by the following formula (1-1) or the formula (1-2) is reacted with methacrylic acid or acrylic acid in the presence of an acid Method for producing meta) acrylic acid ester.

（式（１−１）、式（１−２）、式（２−１）および式（２−２）中、Ｒ1 〜Ｒ9 、Ｒ11〜Ｒ19はそれぞれ独立に水素原子、または酸素原子を含んでもよい炭素数１〜４の１価の炭化水素基を表し、Ｒ20は水素原子またはメチル基を表す。）(In the formula (1-1), the formula (1-2), the formula (2-1) and the formula (2-2), R1 to R9 and R11 to R19 each independently contain a hydrogen atom or an oxygen atom Represents a C1-C4 monovalent hydrocarbon group, and R20 represents a hydrogen atom or a methyl group.) 下記式（１−１）または式（１−２）で表される化合物に、酸を付加した後、（メタ）アクリル酸エステルとエステル交換反応させる、下記式（２−１）または式（２−２）の（メタ）アクリル酸エステルの製造方法。  An acid is added to a compound represented by the following formula (1-1) or formula (1-2), and then transesterification with a (meth) acrylic acid ester is carried out, the following formula (2-1) or formula (2) -2) The manufacturing method of the (meth) acrylic acid ester.

（式（１−１）、式（１−２）、式（２−１）および式（２−２）中、Ｒ1 〜Ｒ9 、Ｒ11〜Ｒ19はそれぞれ独立に水素原子、または酸素原子を含んでもよい炭素数１〜４の１価の炭化水素基を表し、Ｒ20は水素原子またはメチル基を表す。）(In the formula (1-1), the formula (1-2), the formula (2-1) and the formula (2-2), R1 to R9 and R11 to R19 each independently contain a hydrogen atom or an oxygen atom Represents a C1-C4 monovalent hydrocarbon group, and R20 represents a hydrogen atom or a methyl group.)