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.:

US 6815559 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 09, 2004

Filed:

Jun. 19, 2003
Applicant:
Inventors:

Akihiro Ishii, Saitama, JP;

Masatomi Kanai, Saitama, JP;

Yokusu Kuriyama, Saitama, JP;

Manabu Yasumoto, Saitama, JP;

Kenjin Inomiya, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 5/300 ;
U.S. Cl.
CPC ...
C07C 5/300 ;
Abstract

The invention relates to a process for producing 3,3,3-trifluoro-2-hydroxypropionic acid. This process includes the step of (a) bringing a 1,1-dihalogeno-3,3,3-trifluoroacetone into contact with a basic aqueous solution. The obtained 3,3,3-trifluoro-2-hydroxypropionic acid may be reacted with a C -C lower alcohol under an acidic condition, thereby producing a 3,3,3-trifluoro-2-hydroxypropionate. This propionate may be reacted with a hydride reducing agent (e.g., sodium borohydride), thereby producing 3,3,3-trifluoro-2-hydroxypropanol. These products (i.e., 3,3,3-trifluoro-2-hydroxypropionic acid and its derivatives) are important intermediates for medicines and liquid crystals.


Find Patent Forward Citations

Ishii, Akihiro. (2004). Process for producing 3,3,3-trifluoro-2-hydroxypropionic acid or its derivative (U.S. Patent No. 6815559). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6815559

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