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:
Jun. 07, 1994
Filed:
Dec. 31, 1992
Applicant:
Inventors:
Takehiko Kakimoto, Gifu, JP;
Toshimi Ogawa, Ogaki, JP;
Assignee:
Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
5483415 ;
Abstract
This invention provides a process for producing 2-alkyl-4-halo-5-formylimidazoles which includes halogenating 2-alkyl-5-formylimidazoles with a N-halosuccinimides in the presence of dioxane or mixture of dioxane and ethylene glycol monomethylether as solvent and in the presence of alkali metal hydrogen carbonate as catalyst, which are readily available, with good yield.