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:
Dec. 25, 2012
Filed:
Jul. 29, 2008
Shigeo Murai, Kusatsu, JP;
Hiroshi Yoshizawa, Yokkaichi, JP;
Takeshi Ohshima, Kusatsu, JP;
Katsuyoshi Murakami, Yokkaichi, JP;
Takayoshi Ando, Yokkaichi, JP;
Tadashi Nakamura, Yokkaichi, JP;
Norio Adachi, Kusatsu, JP;
Akihiko Isogai, Kusatsu, JP;
Shigeo Murai, Kusatsu, JP;
Hiroshi Yoshizawa, Yokkaichi, JP;
Takeshi Ohshima, Kusatsu, JP;
Katsuyoshi Murakami, Yokkaichi, JP;
Takayoshi Ando, Yokkaichi, JP;
Tadashi Nakamura, Yokkaichi, JP;
Norio Adachi, Kusatsu, JP;
Akihiko Isogai, Kusatsu, JP;
Ishihara Sangyo Kaisha, Ltd., Osaka-shi, JP;
Abstract
Because fluazinam is excellent as an active ingredient of pesticides and highly useful, it is desired to produce it efficiently in a proper form with simple operations at low cost in an environmentally friendly manner. The desired product is obtained in good yields with simple operations by using industrially advantageous reaction systems by a process comprising (1) a step of reacting ACTF and DCDNBTF in the presence of an alkali component, a solvent selected from the group consisting of ketones, nitriles, ethers and esters and a sufficient amount of water to substantially dissolve the alkali component, (2) a step of neutralizing or acidifying the reaction mixture with an acid and (3) a step of removing the solvent by distillation from the mixture containing fluazinam as the reaction product and the reaction solvent to precipitate crystals the product.