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JPS5665840A - Stabilizing method of ketone - Google Patents

Stabilizing method of ketone

Info

Publication number
JPS5665840A
JPS5665840A JP14136479A JP14136479A JPS5665840A JP S5665840 A JPS5665840 A JP S5665840A JP 14136479 A JP14136479 A JP 14136479A JP 14136479 A JP14136479 A JP 14136479A JP S5665840 A JPS5665840 A JP S5665840A
Authority
JP
Japan
Prior art keywords
ketone
expressed
formula
reaction
stabilizer
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
JP14136479A
Other languages
Japanese (ja)
Inventor
Shoichi Kinoshita
Yoshitomo Yonehara
Kenichi Oaku
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.)
Kawamura Institute of Chemical Research
DIC Corp
Original Assignee
Kawamura Institute of Chemical Research
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 Kawamura Institute of Chemical Research, Dainippon Ink and Chemicals Co Ltd filed Critical Kawamura Institute of Chemical Research
Priority to JP14136479A priority Critical patent/JPS5665840A/en
Publication of JPS5665840A publication Critical patent/JPS5665840A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To suppress the reduction of the yield and recovery of an unreacted ketone, by preventing the decomposition of an unsaturated ketone formed from a prenyl kalide and a ketone during standing or distillation with a tertiary aromatic amine or an epoxy compound as a stabilizer.
CONSTITUTION: A prenyl halide expressed by formula I (X is Cl, Br, etc.) and a ketone expressed by formula II [R and R' are H or 1-15C alkyl, and may form a ring with CH2COCH2, and R-R' (forming a ring) is alkylene], are condensed with an alkali condensing agent, in the presence of iodine or its compound, to give an unsaturated ketone expressed by formula III. After the reaction, a tertiary aromatic amine, e.g. N,N-dimethylaniline, an epoxy compound, e.g. epichlorohydrin, or their mixture, as a stabilizer, is added to the reaction solution or its treating system after the reaction. According to the method, the corrosion of the metallic equipment may be completely inhibited.
COPYRIGHT: (C)1981,JPO&Japio
JP14136479A 1979-11-02 1979-11-02 Stabilizing method of ketone Pending JPS5665840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14136479A JPS5665840A (en) 1979-11-02 1979-11-02 Stabilizing method of ketone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14136479A JPS5665840A (en) 1979-11-02 1979-11-02 Stabilizing method of ketone

Publications (1)

Publication Number Publication Date
JPS5665840A true JPS5665840A (en) 1981-06-03

Family

ID=15290256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14136479A Pending JPS5665840A (en) 1979-11-02 1979-11-02 Stabilizing method of ketone

Country Status (1)

Country Link
JP (1) JPS5665840A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951231A (en) * 1982-09-14 1984-03-24 Shin Etsu Chem Co Ltd Stabilization of higher aliphatic aldehyde compound
JPS5951232A (en) * 1982-09-14 1984-03-24 Shin Etsu Chem Co Ltd Stabilization of higher aliphatic aldehyde compound
US5231232A (en) * 1991-12-18 1993-07-27 Loyola University Of Chicago Method of preparing C-18 ketones used in the manufacture of Vitamins E and K

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951231A (en) * 1982-09-14 1984-03-24 Shin Etsu Chem Co Ltd Stabilization of higher aliphatic aldehyde compound
JPS5951232A (en) * 1982-09-14 1984-03-24 Shin Etsu Chem Co Ltd Stabilization of higher aliphatic aldehyde compound
JPS6234023B2 (en) * 1982-09-14 1987-07-24 Shinetsu Chem Ind Co
JPS6312452B2 (en) * 1982-09-14 1988-03-18 Shinetsu Chem Ind Co
US5231232A (en) * 1991-12-18 1993-07-27 Loyola University Of Chicago Method of preparing C-18 ketones used in the manufacture of Vitamins E and K

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