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. 08, 2012
Filed:
Oct. 10, 2007
Hirohito Oooka, Takaoka, JP;
Yasushi Shibata, Odawara, JP;
Hiroki Inoue, Takaoka, JP;
Tsutomu Imagawa, Takaoka, JP;
Hirohito Oooka, Takaoka, JP;
Yasushi Shibata, Odawara, JP;
Hiroki Inoue, Takaoka, JP;
Tsutomu Imagawa, Takaoka, JP;
Nippon Soda Co., Ltd., Tokyo, JP;
Abstract
Provided is a method for producing a piperidin-4-one derivative useful as an intermediate for agricultural chemicals or pharmaceutical products. A piperidin-4-one derivative represented by formula (III-a) or formula (III-b) is produced by reacting a cyclic bis(aminol)ether compound represented by formula (I) and an acetone derivative represented by formula (II) in the presence of at least one substance selected from the group consisting of protonic acids, Lewis acids, acid halides and dialkyl sulfuric acids.