JPS5622753A - Preparation of alpha-halogeno-beta-alanine or its salt of mineral acid - Google Patents

Preparation of alpha-halogeno-beta-alanine or its salt of mineral acid

Info

Publication number
JPS5622753A
JPS5622753A JP9863479A JP9863479A JPS5622753A JP S5622753 A JPS5622753 A JP S5622753A JP 9863479 A JP9863479 A JP 9863479A JP 9863479 A JP9863479 A JP 9863479A JP S5622753 A JPS5622753 A JP S5622753A
Authority
JP
Japan
Prior art keywords
mineral acid
halogeno
alanine
salt
beta
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
JP9863479A
Other languages
Japanese (ja)
Other versions
JPS6320811B2 (en
Inventor
Ryuichi Mita
Teruhiro Yamaguchi
Toshio Kato
Chojiro Higuchi
Naomichi Murakami
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 Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP9863479A priority Critical patent/JPS5622753A/en
Priority to EP19800301165 priority patent/EP0018177B1/en
Priority to DE8080301165T priority patent/DE3060243D1/en
Publication of JPS5622753A publication Critical patent/JPS5622753A/en
Publication of JPS6320811B2 publication Critical patent/JPS6320811B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the titled compound in short process in high yield useful as an intermediate for an α-amino acid, a drug, etc., by hydrolyzing a reaction product of an α,β-dihalogenopropionitrile and NH3 in a mineral acid without isolating the product.
CONSTITUTION: An α,β-dihalogenopropionitrile is reacted with NH3 in a solvent, e.g., water, methanol, ethanol, etc. at -40W30°C, preferably at -20W20°C, to give an α-halogeno-β-aminopropionitrile, which is not isolated from the reaction system and hydrolyzed continuously in a mineral acid at 50W150°C, preferably at 80W120°C, to prepare an α-halogeno-β-alanine or its salt of mineral acid.
COPYRIGHT: (C)1981,JPO&Japio
JP9863479A 1979-04-12 1979-08-03 Preparation of alpha-halogeno-beta-alanine or its salt of mineral acid Granted JPS5622753A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9863479A JPS5622753A (en) 1979-08-03 1979-08-03 Preparation of alpha-halogeno-beta-alanine or its salt of mineral acid
EP19800301165 EP0018177B1 (en) 1979-04-12 1980-04-11 Process for producing alpha-halogeno-beta-alanines or the mineral acid salts thereof
DE8080301165T DE3060243D1 (en) 1979-04-12 1980-04-11 Process for producing alpha-halogeno-beta-alanines or the mineral acid salts thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9863479A JPS5622753A (en) 1979-08-03 1979-08-03 Preparation of alpha-halogeno-beta-alanine or its salt of mineral acid

Publications (2)

Publication Number Publication Date
JPS5622753A true JPS5622753A (en) 1981-03-03
JPS6320811B2 JPS6320811B2 (en) 1988-04-30

Family

ID=14224929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9863479A Granted JPS5622753A (en) 1979-04-12 1979-08-03 Preparation of alpha-halogeno-beta-alanine or its salt of mineral acid

Country Status (1)

Country Link
JP (1) JPS5622753A (en)

Also Published As

Publication number Publication date
JPS6320811B2 (en) 1988-04-30

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