JPS55115843A - Preparation of delta-hydroxy-ketone - Google Patents

Preparation of delta-hydroxy-ketone

Info

Publication number
JPS55115843A
JPS55115843A JP2333479A JP2333479A JPS55115843A JP S55115843 A JPS55115843 A JP S55115843A JP 2333479 A JP2333479 A JP 2333479A JP 2333479 A JP2333479 A JP 2333479A JP S55115843 A JPS55115843 A JP S55115843A
Authority
JP
Japan
Prior art keywords
amidated
keto
delta
ketone
hydroxy
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
JP2333479A
Other languages
Japanese (ja)
Inventor
Onori Fukuoka
Kenji Saeki
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries 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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP2333479A priority Critical patent/JPS55115843A/en
Publication of JPS55115843A publication Critical patent/JPS55115843A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To obtain the title substance, an important intermediate for chromans, in high yield, by hydrolyzing the reaction product between the amidated δ-keto- carboxylic acid and methylmagnesium chloride.
CONSTITUTION: A δ-keto-carboxylic acid of formulaI (R is hydrocarbon group) is amidated with phosphoric triamide to form an acid amide of formula II (R' and R" are H or hydrocarbon groups, or may be linked to each other), which is reacted with methylmagnesium chloride in an aliphatic ether at 0W35°C at a high reaction rate. The reaction product is then hydrolyzed to give the objective substance of formula III in high yield.
COPYRIGHT: (C)1980,JPO&Japio
JP2333479A 1979-03-02 1979-03-02 Preparation of delta-hydroxy-ketone Pending JPS55115843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2333479A JPS55115843A (en) 1979-03-02 1979-03-02 Preparation of delta-hydroxy-ketone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2333479A JPS55115843A (en) 1979-03-02 1979-03-02 Preparation of delta-hydroxy-ketone

Publications (1)

Publication Number Publication Date
JPS55115843A true JPS55115843A (en) 1980-09-06

Family

ID=12107673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2333479A Pending JPS55115843A (en) 1979-03-02 1979-03-02 Preparation of delta-hydroxy-ketone

Country Status (1)

Country Link
JP (1) JPS55115843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106673976A (en) * 2016-12-20 2017-05-17 福建师范大学 Preparation method for alpha-hydroxy cyclo-pentadecanone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106673976A (en) * 2016-12-20 2017-05-17 福建师范大学 Preparation method for alpha-hydroxy cyclo-pentadecanone
CN106673976B (en) * 2016-12-20 2019-06-14 福建师范大学 A kind of preparation method of Alpha-hydroxy cyclopentadecanone

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