Title:
METHOD FOR PRODUCING β-MERCAPTOCARBOXYLIC ACID
Document Type and Number:
WIPO Patent Application WO/2013/076968
Kind Code:
A1
Abstract:
This method for producing a β-mercaptocarboxylic acid represented by general formula (3) involves: a step of obtaining a reaction solution including a compound represented by general formula (2) by reacting, under atmospheric pressure, hydrogen sulfide, an alkali hydroxide represented by the formula XOH (wherein X represents Na or K), and an unsaturated carboxylic acid represented by general formula (1); and a step of neutralizing the reaction solution obtained in the aforementioned step with an acid. The amount of said alkali hydroxide is greater than or equal to the total number of moles of said unsaturated carboxylic acid and said hydrogen sulfide.
Inventors:
FURUYA MASAYUKI (JP)
OGAWA TATSUYA (JP)
NISHIMURA TAKESHI (JP)
OGAWA TATSUYA (JP)
NISHIMURA TAKESHI (JP)
Application Number:
PCT/JP2012/007451
Publication Date:
May 30, 2013
Filing Date:
November 20, 2012
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C07C319/04; C07C319/28; C07C323/52; C07B61/00
Domestic Patent References:
| WO2010095745A1 | 2010-08-26 | |||
| WO2010095745A1 | 2010-08-26 |
Foreign References:
| JPS4015170B | ||||
| JPS4712317A | ||||
| GB1336037A | 1973-11-07 | |||
| JP2000501723A | 2000-02-15 | |||
| JP2001187778A | 2001-07-10 | |||
| JPS5929633A | 1984-02-16 | |||
| JP2001187778A | 2001-07-10 | |||
| JP2000501723A | 2000-02-15 | |||
| JPH02121962A | 1990-05-09 |
Other References:
See also references of EP 2784064A4
Attorney, Agent or Firm:
HAYAMI, SHINJI (JP)
Shinji Hayami (JP)
Shinji Hayami (JP)
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Claims:
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