PRODUCTION OF ACRYLIC ACID ESTER HAVING 1,2-DIOL END GROUP

PURPOSE:To produce an acrylic acid ester having 1,2-diol end group useful as a raw material for synthesis of a coating material, a contact lens, etc., in a high yield in a short time by conducting a hydration reaction in a system composed of a specified acrylic acid ester, water and an organic solve...

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Bibliographic Details
Main Authors WATANABE KIYOSHI, MATSUURA TOMOO
Format Patent
LanguageEnglish
Published 24.10.1995
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PURPOSE:To produce an acrylic acid ester having 1,2-diol end group useful as a raw material for synthesis of a coating material, a contact lens, etc., in a high yield in a short time by conducting a hydration reaction in a system composed of a specified acrylic acid ester, water and an organic solvent. CONSTITUTION:(A) An acrylic acid ester of formula I [R is H or an alkyl; R is a (substituted) hydrocarbon residue] is subjected to hydration reaction in the presence of (B) an acid such as sulfuric acid, perchloric acid, trifluoroacetic acid or benzenesulfonic acid in (C) a system composed of an organic solvent such as toluene or n-hexane and water to synthesize the objective compound of formula II. In addition, the amount of water used in the component (C) is preferably 0.5 to 10 pts.wt., especially 1 to 5 pts.wt. based on 1 pts.wt. organic solvent.
Bibliography:Application Number: JP19940087495