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Patent Searching and Data


Title:
PRODUCTION OF HIGH-PURITY (METH)ACRYLIC ACID ESTER
Document Type and Number:
Japanese Patent JPH11222462
Kind Code:
A
Abstract:

To obtain the subject high-purity compound in a high degree of conversion, by reacting methyl (meth)acrylate with an alcohol by using tetramethyl titanate as a catalyst and a specific N-oxyl compound as a polymerization inhibitor.

Methyl (meth)acrylate in an amount of 1.2-3.0 mols is reacted with 1 mol of a 3-20C alcohol (e.g. n-propanol, isopropanol, n-butanol or the like) by using preferably 0.0005-0.01 mol of tetramethyl titanate as a catalyst and preferably 100-800 ppm based on methyl (meth)acrylate of an N-oxyl compound of the formula [R1 to R4 are each an alkyl; R5 is H, OH, a group of the formula, OR or OCOR (R is a 1-18C alkyl, alkenyl or aryl) or the like] (e.g. 2,2,6,6-tetramethylpiperidine-N-oxyl or the like) as a polymerization inhibitor at 60-150°C to give the objective compound.


Inventors:
SONOBE HIROSHI
DOI JUNICHI
TANI AKIO
SUZUKI SHINJI
MIYOUGA MASAFUMI
Application Number:
JP2104998A
Publication Date:
August 17, 1999
Filing Date:
February 02, 1998
Export Citation:
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Assignee:
MITSUBISHI RAYON CO
OSAKA ORGANIC CHEM IND
International Classes:
B01J31/02; B01J31/12; C07B61/00; C07C67/03; C07C67/62; C07C69/54; (IPC1-7): C07C69/54; B01J31/02; C07C67/03; C07C67/62
Attorney, Agent or Firm:
Tadashi Wakabayashi (4 others)