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Patent Searching and Data


Title:
PROCESS FOR PREPARATION OF ALKYL METHANESULFONATE SOLUTION
Document Type and Number:
WIPO Patent Application WO/2011/108563
Kind Code:
A1
Abstract:
A heat-stable solution of an alkyl methanesulfonate in an aromatic organic solvent can be prepared by: reacting an alkyl alcohol with methanesulfonyl chloride in an aromatic organic solvent in the presence of a tertiary amine; and then subjecting the obtained solution of a crude alkyl methanesulfonate in the aromatic organic solvent to washing with an aqueous alkali metal carbonate solution. The washing is conducted using an aqueous alkali metal carbonate solution having a concentration of 1 to 3% by mass in an amount of 4 to 6 parts by mass per part by mass of the alkyl alcohol.

Inventors:
MARUNO SHINOBU (JP)
NAKAZAWA KOICHI (JP)
Application Number:
PCT/JP2011/054698
Publication Date:
September 09, 2011
Filing Date:
March 02, 2011
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
MARUNO SHINOBU (JP)
NAKAZAWA KOICHI (JP)
International Classes:
C07C303/28; C07C303/44; C07C309/66
Foreign References:
JP2000219669A2000-08-08
JPH09202763A1997-08-05
JP2000219669A2000-08-08
Other References:
DONALD S. NOYCE ET AL.: "The Solvolysis of Some Substituted Cyclohexyl Methanesulfonates", THE JOURNAL OF ORGANIC CHEMISTRY, vol. 34, no. 2, 1969, pages 463 - 465, XP055070271
See also references of EP 2543662A4
DONALD S. NOYCE ET AL., THE JOURNAL OF ORGANIC CHEMISTRY, vol. 34, no. 2, February 1969 (1969-02-01), pages 463 - 465
RONALD K. CROSSLAND ET AL., JOURNAL OF ORGANIC CHEMISTRY, vol. 35, no. 7, 1970, pages 3195 - 3196
Attorney, Agent or Firm:
FUKAI, Toshikazu (JP)
Toshikazu Fukai (JP)
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Claims: