JPS57136548A - Preparation of 3,5-di-alkyl-4-hydroxyphenylpropionic higher alkyl ester - Google Patents

Preparation of 3,5-di-alkyl-4-hydroxyphenylpropionic higher alkyl ester

Info

Publication number
JPS57136548A
JPS57136548A JP56022189A JP2218981A JPS57136548A JP S57136548 A JPS57136548 A JP S57136548A JP 56022189 A JP56022189 A JP 56022189A JP 2218981 A JP2218981 A JP 2218981A JP S57136548 A JPS57136548 A JP S57136548A
Authority
JP
Japan
Prior art keywords
alkyl
hydroxyphenylpropionic
catalyst
ester
formulai
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56022189A
Other languages
Japanese (ja)
Inventor
Kozo Shimizu
Yasunosuke Tanabe
Mitsuo Kurihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawaguchi Chemical Industry Co Ltd
Original Assignee
Kawaguchi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawaguchi Chemical Industry Co Ltd filed Critical Kawaguchi Chemical Industry Co Ltd
Priority to JP56022189A priority Critical patent/JPS57136548A/en
Publication of JPS57136548A publication Critical patent/JPS57136548A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To obtain the titled compound, having improved initial color tone and reduced discoloration with time, and useful as a stabilizer for organic compounds without requiring complicated purifying steps, by using an acidic catalyst as a catalyst in the ester interchange reaction of a 3,5-di-alkyl-4-hydroxyphenylpropionic alkyl ester with a high alkyl alcohol.
CONSTITUTION: A 3,5-di-alkyl-4-hydroxyphenylpropionic alkyl ester of formulaI (R1 is 1W8C alkyl; R2 and R3 are H or 1W12C alkyl; however, both are not H at the same time) is subjected to the ester interchange reaction with a higher alkyl alcohol of the formula R4-OH (R4 is 4W20C alkyl; however, the carbon number is larger than that of R1) in the presence of an aromatic sulfonic acid, e.g. p-toluenesulfonic acid, or a cation exchange resin as a catalyst, preferably at 60W120°C and 1W30mmHg, to give the aimed compound of formula II. Preferably, the amount of the p-toluenesulfonic acid as the catalyst added is 0.01W 0.20mol based on one mole compound of formulaI, and that of the cation exchange resin is 50W150g.
COPYRIGHT: (C)1982,JPO&Japio
JP56022189A 1981-02-19 1981-02-19 Preparation of 3,5-di-alkyl-4-hydroxyphenylpropionic higher alkyl ester Pending JPS57136548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56022189A JPS57136548A (en) 1981-02-19 1981-02-19 Preparation of 3,5-di-alkyl-4-hydroxyphenylpropionic higher alkyl ester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56022189A JPS57136548A (en) 1981-02-19 1981-02-19 Preparation of 3,5-di-alkyl-4-hydroxyphenylpropionic higher alkyl ester

Publications (1)

Publication Number Publication Date
JPS57136548A true JPS57136548A (en) 1982-08-23

Family

ID=12075844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56022189A Pending JPS57136548A (en) 1981-02-19 1981-02-19 Preparation of 3,5-di-alkyl-4-hydroxyphenylpropionic higher alkyl ester

Country Status (1)

Country Link
JP (1) JPS57136548A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6291703B1 (en) 1998-02-09 2001-09-18 Ciba Specialty Chemicals Corporation Preparation of substituted hydroxyhydrocinnamate esters by continuous transesterification using reactive distillation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6291703B1 (en) 1998-02-09 2001-09-18 Ciba Specialty Chemicals Corporation Preparation of substituted hydroxyhydrocinnamate esters by continuous transesterification using reactive distillation

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