JPS57142954A - Preparation of malononitrile - Google Patents

Preparation of malononitrile

Info

Publication number
JPS57142954A
JPS57142954A JP2833381A JP2833381A JPS57142954A JP S57142954 A JPS57142954 A JP S57142954A JP 2833381 A JP2833381 A JP 2833381A JP 2833381 A JP2833381 A JP 2833381A JP S57142954 A JPS57142954 A JP S57142954A
Authority
JP
Japan
Prior art keywords
reaction product
hydrogen cyanide
copper
aminoacetonitrile
reacted
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
JP2833381A
Other languages
Japanese (ja)
Other versions
JPS612655B2 (en
Inventor
Shunichi Hamamoto
Katsumasa Harada
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.)
Ube Corp
Original Assignee
Ube 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP2833381A priority Critical patent/JPS57142954A/en
Priority to US06/324,424 priority patent/US4376080A/en
Priority to CA000391255A priority patent/CA1158669A/en
Priority to ES508107A priority patent/ES8300691A1/en
Priority to EP81110088A priority patent/EP0053400B1/en
Priority to DE8181110088T priority patent/DE3162535D1/en
Publication of JPS57142954A publication Critical patent/JPS57142954A/en
Publication of JPS612655B2 publication Critical patent/JPS612655B2/ja
Granted legal-status Critical Current

Links

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

Abstract

PURPOSE: To obtain the titled compound useful as a raw material for vitamine B1 at a low cost in simple steps in high yield, by reacting an aminoacetonitrile with nitrous acid in a specific pH range, and reacting the reaction product with hydrogen cyanide in the presence of a copper compound.
CONSTITUTION: An easily available aminoacetonitrile is reacted with nitrous acid in a solvent, e.g. ethyl ether or methylene chloride, at a pH ≤10, preferably 2W8, and the resultant reaction product is, without isolation from the reaction product solution, reacted with hydrogen cyanide hydrogen cyanide in the presence of a copper compound, e.g. mono- and bivalent copper sulfate or copper carbonate, at 50°C or below at a pH of 3W12, preferably 0W40°C at a pH of 4W11 for 0.5W5hr, to afford the aimed substance.
COPYRIGHT: (C)1982,JPO&Japio
JP2833381A 1980-12-02 1981-03-02 Preparation of malononitrile Granted JPS57142954A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2833381A JPS57142954A (en) 1981-03-02 1981-03-02 Preparation of malononitrile
US06/324,424 US4376080A (en) 1980-12-02 1981-11-24 Process for preparing malononitrile
CA000391255A CA1158669A (en) 1980-12-02 1981-12-01 Process for preparing malononitrile
ES508107A ES8300691A1 (en) 1980-12-02 1981-12-01 Process for preparing malononitrile.
EP81110088A EP0053400B1 (en) 1980-12-02 1981-12-02 Process for preparing malononitrile
DE8181110088T DE3162535D1 (en) 1980-12-02 1981-12-02 Process for preparing malononitrile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2833381A JPS57142954A (en) 1981-03-02 1981-03-02 Preparation of malononitrile

Publications (2)

Publication Number Publication Date
JPS57142954A true JPS57142954A (en) 1982-09-03
JPS612655B2 JPS612655B2 (en) 1986-01-27

Family

ID=12245676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2833381A Granted JPS57142954A (en) 1980-12-02 1981-03-02 Preparation of malononitrile

Country Status (1)

Country Link
JP (1) JPS57142954A (en)

Also Published As

Publication number Publication date
JPS612655B2 (en) 1986-01-27

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