Preparation method of 2,2,4-trimethyl-3-hydroxypentanoic acid n-butyl ester, latex paint and preparation method thereof

Abstract

The invention relates to the technical field of organic compound synthesis and application, in particular to a preparation method of n-butyl 2,2,4-trimethyl-3 hydroxypentanoate, which contains 2,2,4-trimethyl-3 hydroxypentyl Latex paint of n-butyl ester and preparation method thereof. The preparation method of 2,2,4-trimethyl-3 hydroxy-n-butyl valerate of the present invention comprises the following steps: 1) isobutyraldehyde undergoes an aldol condensation reaction under the action of a basic catalyst to generate 2,2, 4-Trimethyl-3-hydroxypentanal; the 2,2,4-trimethyl-3-hydroxypentanal obtained above was mixed with H 2 o 2 Oxidation reaction to obtain 2,2,4-trimethyl-3 hydroxyvaleric acid; 2) 2,2,4-trimethyl-3 hydroxyvaleric acid and n-butanol prepared in step 1) under the action of a strong acid catalyst The reaction yields n-butyl 2,2,4-trimethyl-3-hydroxyvalerate.

Description

technical field

[0001] The invention relates to the technical field of synthesis and application of organic compounds, in particular to a preparation method of n-butyl 2,2,4-trimethyl-3-hydroxypentanoate, which contains 2,2,4-trimethyl-3-hydroxypentanoic acid Latex paint of n-butyl ester and preparation method thereof. Background technique

[0002] Latex paint is a type of paint with polymer emulsion as the film-forming substance, also known as synthetic resin emulsion paint. It generally uses water as the dispersion medium, and has the characteristics of simple preparation process, relatively environmental protection, and good color retention. The coalescent of existing exterior wall latex paint generally adopts dodecyl alcohol ester (2,2,4-trimethyl-1,3 pentanediol-monoisobutyrate), but dodecyl alcohol ester The film-forming efficiency is relatively low, and the film-forming aid with high film-forming efficiency has a relatively high boiling point and slow volatilization,...

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