JPS5764661A - Preparation of mercaptoamines - Google Patents

Preparation of mercaptoamines

Info

Publication number
JPS5764661A
JPS5764661A JP13874180A JP13874180A JPS5764661A JP S5764661 A JPS5764661 A JP S5764661A JP 13874180 A JP13874180 A JP 13874180A JP 13874180 A JP13874180 A JP 13874180A JP S5764661 A JPS5764661 A JP S5764661A
Authority
JP
Japan
Prior art keywords
acid
aqueous solution
amount
compound shown
dividedly
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
JP13874180A
Other languages
Japanese (ja)
Inventor
Isamu Yamamoto
Eiichi Noda
Yoshiaki Noguchi
Shigenobu Nakayama
Noboru Kawasaki
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 JP13874180A priority Critical patent/JPS5764661A/en
Publication of JPS5764661A publication Critical patent/JPS5764661A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a mercaptoamine useful as a raw material for drugs in high purity in high yield inexpensively, by adding dividedly an S-2-aminoethyl thiosulfate to a heated aqueous solution of an acid so that it is hydrolyzed.
CONSTITUTION: A compound shown by the formulaI(R1WR4 are H or 1W4C alkyl) is added dividedly to an aqueous solution of an acid heated at ≥80°C, and hydrolyzed to give a mercaptoamine shown by the formula II. The aqueous solution of an acid, for example, is an aqueous solution of hydrochloric acid, hydrobromic acid, sulfuric acid, etc., and the amount of the solution is preferably equimolar to the compound shown by the formulaIor more than it. The amount of disulfide as a by-product is made small and the yield is increased by adding dividedly the compound shown by the formulaIso that the amount of the unreacted raw material is made as small as possible.
COPYRIGHT: (C)1982,JPO&Japio
JP13874180A 1980-10-06 1980-10-06 Preparation of mercaptoamines Pending JPS5764661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13874180A JPS5764661A (en) 1980-10-06 1980-10-06 Preparation of mercaptoamines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13874180A JPS5764661A (en) 1980-10-06 1980-10-06 Preparation of mercaptoamines

Publications (1)

Publication Number Publication Date
JPS5764661A true JPS5764661A (en) 1982-04-19

Family

ID=15229082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13874180A Pending JPS5764661A (en) 1980-10-06 1980-10-06 Preparation of mercaptoamines

Country Status (1)

Country Link
JP (1) JPS5764661A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256362A (en) * 1989-07-14 1993-10-26 Nippon Shokubai Co., Ltd. Method for production of granular cysteamine hydrochloride

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256362A (en) * 1989-07-14 1993-10-26 Nippon Shokubai Co., Ltd. Method for production of granular cysteamine hydrochloride

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