The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2012
Filed:
Apr. 20, 2007
Applicants:
Kuniaki Okamoto, Kawagoe, JP;
Tsutomu Watahiki, Kawagoe, JP;
Motoshige Sumino, Kawagoe, JP;
Takao Shibasaki, Kawagoe, JP;
Inventors:
Kuniaki Okamoto, Kawagoe, JP;
Tsutomu Watahiki, Kawagoe, JP;
Motoshige Sumino, Kawagoe, JP;
Takao Shibasaki, Kawagoe, JP;
Assignee:
Wako Pure Chemical Industries, Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 487/00 (2006.01); C07C 309/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method for producing a sulfonate ester efficiently and in high yield. The present invention is an invention of a method for producing a sulfonate ester compound, which comprising reacting: (wherein, Rrepresents an optionally substituted alkyl group or an optionally substituted aryl group)];in the presence of an organic base which is capable of forming a salt with said sulfo group.