JPS5675456A - Preparation of malonic diester - Google Patents

Preparation of malonic diester

Info

Publication number
JPS5675456A
JPS5675456A JP15119779A JP15119779A JPS5675456A JP S5675456 A JPS5675456 A JP S5675456A JP 15119779 A JP15119779 A JP 15119779A JP 15119779 A JP15119779 A JP 15119779A JP S5675456 A JPS5675456 A JP S5675456A
Authority
JP
Japan
Prior art keywords
monochloroacetate
bases
alcohol
alkali metal
portions
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
JP15119779A
Other languages
Japanese (ja)
Other versions
JPS5840936B2 (en
Inventor
Iwao Kobayashi
Tsunehiko Shimizui
Kyoji Aoki
Hiroshi Kaneko
Shunichi Nakamura
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP54151197A priority Critical patent/JPS5840936B2/en
Publication of JPS5675456A publication Critical patent/JPS5675456A/en
Publication of JPS5840936B2 publication Critical patent/JPS5840936B2/en
Expired 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 useful as an intermediate for a medicine and agricultural chemical in high yield, by reacting CO with an alcohol and specific amounts of two or more types of base in the presence of a Co carbonyl catalyst while adding a monochloroacetate in portions thereto.
CONSTITUTION: CO is reacted with an alcohol, (1) an alkali metal carbonate and/ or bicarbonate and (2) an alkali metal hydroxide and/or alcoholate as bases while adding a monochloroacetate in portions thereto in the presence of a Co carbonyl catalyst to give the titled compound. The weight ratio between the bases (1) and (2) is preferably 90:10W99.5:0.5. The amount of the bases is a stoichiometric one or more, preferably 1W1.3 times that of the monochloroacetate. The pH of the reaction system can be automatically controlled, and the reaction proceeds with stable operation without problems of catalyst activity.
COPYRIGHT: (C)1981,JPO&Japio
JP54151197A 1979-11-21 1979-11-21 Production method of malonic acid diester Expired JPS5840936B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54151197A JPS5840936B2 (en) 1979-11-21 1979-11-21 Production method of malonic acid diester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54151197A JPS5840936B2 (en) 1979-11-21 1979-11-21 Production method of malonic acid diester

Publications (2)

Publication Number Publication Date
JPS5675456A true JPS5675456A (en) 1981-06-22
JPS5840936B2 JPS5840936B2 (en) 1983-09-08

Family

ID=15513369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54151197A Expired JPS5840936B2 (en) 1979-11-21 1979-11-21 Production method of malonic acid diester

Country Status (1)

Country Link
JP (1) JPS5840936B2 (en)

Also Published As

Publication number Publication date
JPS5840936B2 (en) 1983-09-08

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