JPS5448739A - Stereoisomerization of cis-3-methyl-4-tetrahydro-cis, cis-phthalic anhydride or its hydrogenated compound - Google Patents

Stereoisomerization of cis-3-methyl-4-tetrahydro-cis, cis-phthalic anhydride or its hydrogenated compound

Info

Publication number
JPS5448739A
JPS5448739A JP11468077A JP11468077A JPS5448739A JP S5448739 A JPS5448739 A JP S5448739A JP 11468077 A JP11468077 A JP 11468077A JP 11468077 A JP11468077 A JP 11468077A JP S5448739 A JPS5448739 A JP S5448739A
Authority
JP
Japan
Prior art keywords
cis
methyl
tetrahydro
phthalic anhydride
alkali metal
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.)
Granted
Application number
JP11468077A
Other languages
Japanese (ja)
Other versions
JPS5734834B2 (en
Inventor
Katsuji Takahashi
Nagaro Ariga
Minoru Yamamoto
Takehisa Mizuno
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP11468077A priority Critical patent/JPS5448739A/en
Publication of JPS5448739A publication Critical patent/JPS5448739A/en
Publication of JPS5734834B2 publication Critical patent/JPS5734834B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a liquid or solid isomer by heating and isomerizing cis-3- methyl-Δ4-tetrahydro-cis,cis-phthalic anhydride or its hydrogenated compound in the presence of an alkali metal compound, and terminating the isomerization reaction by the addition of a phosphorous ester.
CONSTITUTION: Cis-3-methyl-Δ4-tetrahydro-cis, cis-phthalic anhydride or its hydrogenated compound, cis-3-methyl-hexahydrophthalic anhydride, is isomerized to the corresponding isomer by haeatig in the presence of an alkali metal compound such as LiOH. When the degree of isomerization reaches a definite value, the isomerization is stopped by adding a phosphorous ester (e.g. triphenyl phosphite, etc.) in an amount at least equimolar to the alkali metal compound.
USE: Curing agents for epoxy resins or epoxy powder coating
COPYRIGHT: (C)1979,JPO&Japio
JP11468077A 1977-09-26 1977-09-26 Stereoisomerization of cis-3-methyl-4-tetrahydro-cis, cis-phthalic anhydride or its hydrogenated compound Granted JPS5448739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11468077A JPS5448739A (en) 1977-09-26 1977-09-26 Stereoisomerization of cis-3-methyl-4-tetrahydro-cis, cis-phthalic anhydride or its hydrogenated compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11468077A JPS5448739A (en) 1977-09-26 1977-09-26 Stereoisomerization of cis-3-methyl-4-tetrahydro-cis, cis-phthalic anhydride or its hydrogenated compound

Publications (2)

Publication Number Publication Date
JPS5448739A true JPS5448739A (en) 1979-04-17
JPS5734834B2 JPS5734834B2 (en) 1982-07-26

Family

ID=14643936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11468077A Granted JPS5448739A (en) 1977-09-26 1977-09-26 Stereoisomerization of cis-3-methyl-4-tetrahydro-cis, cis-phthalic anhydride or its hydrogenated compound

Country Status (1)

Country Link
JP (1) JPS5448739A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049597A1 (en) * 2003-11-20 2005-06-02 Mitsubishi Gas Chemical Company, Inc. Liquid cyclohexane-tricarboxycylic acid anhydride

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049597A1 (en) * 2003-11-20 2005-06-02 Mitsubishi Gas Chemical Company, Inc. Liquid cyclohexane-tricarboxycylic acid anhydride
CN100451012C (en) * 2003-11-20 2009-01-14 三菱瓦斯化学株式会社 Liquid cyclohexane-tricarboxylic acid anhydride
US7569708B2 (en) 2003-11-20 2009-08-04 Mitsubishi Gas Chemical Company, Inc. Liquid cyclohexane-tricarboxylic acid anhydride
JP4826256B2 (en) * 2003-11-20 2011-11-30 三菱瓦斯化学株式会社 Liquid cyclohexanetricarboxylic acid anhydride

Also Published As

Publication number Publication date
JPS5734834B2 (en) 1982-07-26

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