JPS54117423A - Preparation of jasmonic acid ester derivative, and novel intermediate - Google Patents

Preparation of jasmonic acid ester derivative, and novel intermediate

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Publication number
JPS54117423A
JPS54117423A JP2443078A JP2443078A JPS54117423A JP S54117423 A JPS54117423 A JP S54117423A JP 2443078 A JP2443078 A JP 2443078A JP 2443078 A JP2443078 A JP 2443078A JP S54117423 A JPS54117423 A JP S54117423A
Authority
JP
Japan
Prior art keywords
ketoester
base
chain
ester
acid methyl
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
JP2443078A
Other languages
Japanese (ja)
Other versions
JPS5943939B2 (en
Inventor
Masanao Matsui
Takeshi Kitahara
Keiichi Takagi
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.)
T Hasegawa Co Ltd
Original Assignee
T Hasegawa 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 T Hasegawa Co Ltd filed Critical T Hasegawa Co Ltd
Priority to JP2443078A priority Critical patent/JPS5943939B2/en
Publication of JPS54117423A publication Critical patent/JPS54117423A/en
Publication of JPS5943939B2 publication Critical patent/JPS5943939B2/en
Expired legal-status Critical Current

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

Abstract

PURPOSE: To prepare the title compound useful as a base of perfumery, in high yield and purity and in a short reaction process, by synthesizing a chain ketoester, which is a novel intermediate, from an easily synthesizable, low-cost raw material, and ring-closing the ketoester in the presence of a base.
CONSTITUTION: The objective compound V, e.g. methyl jasmonate, etc., is prepared by (1) condensing a β-ketoester I (R1 is CH3CH2C=CCH2-, CH3CH2CH= CHCH2-, etc.; R3 is methyl, ethyl), e.g. 3-oxo-6-nonylic acid methyl ester, etc. with 4-halocrotonic acid ester II (R2 is R3; X1 is halogen), e.g. 4-halobromocrotonic acid methyl ester, in the presence of a base to afford a chain ketodiester III (novel compound), (2) effecting de-alkoxycarbonylation of the ketodiester to obtain a chain ketoester IV, e.g. 6-oxododeca-2-en-9-ynoic acid methyl ester, etc., and (3) ring-closing the ester in the presence of a base.
COPYRIGHT: (C)1979,JPO&Japio
JP2443078A 1978-03-06 1978-03-06 Novel linear keto mono- or di-ester and its production method Expired JPS5943939B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2443078A JPS5943939B2 (en) 1978-03-06 1978-03-06 Novel linear keto mono- or di-ester and its production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2443078A JPS5943939B2 (en) 1978-03-06 1978-03-06 Novel linear keto mono- or di-ester and its production method

Publications (2)

Publication Number Publication Date
JPS54117423A true JPS54117423A (en) 1979-09-12
JPS5943939B2 JPS5943939B2 (en) 1984-10-25

Family

ID=12137924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2443078A Expired JPS5943939B2 (en) 1978-03-06 1978-03-06 Novel linear keto mono- or di-ester and its production method

Country Status (1)

Country Link
JP (1) JPS5943939B2 (en)

Also Published As

Publication number Publication date
JPS5943939B2 (en) 1984-10-25

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