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:
May. 02, 2006
Filed:
Sep. 26, 2003
Applicants:
Osamu Yamada, Funabashi, JP;
Hiroo Matsumoto, Funabashi, JP;
Takanori Shimizu, Funabashi, JP;
Inventors:
Assignee:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 205/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a process for producing an acetylene compound useful as an intermediate of pharmaceuticals, from 4-nitrofluorobenzene, in industrially and economically advantageous manner. Concretely, it is a method for producing an acetylene compound of formula (3)characterized by reacting 4-nitrofluorobenzene of formula (1)with an alkoxide of 2-methyl-3-butyn-2-ol of formula (2)at −20 to 10° C.