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. 19, 2007
Filed:
Jun. 08, 2005
Nobuaki Mori, Ichihara, JP;
Yasushi Matsumura, Ichihara, JP;
Yoshitomi Morizawa, Yokohama, JP;
Toshihiko Kaminuma, Yokohama, JP;
Yuuichi Aoki, Yokohama, JP;
Nobuaki Mori, Ichihara, JP;
Yasushi Matsumura, Ichihara, JP;
Yoshitomi Morizawa, Yokohama, JP;
Toshihiko Kaminuma, Yokohama, JP;
Yuuichi Aoki, Yokohama, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
The present invention provides processes for producing a (4E)-5-chloro-2-isopropyl-4-pentenoate and an optical isomer of the (4E)-5-chloro-2-isopropyl-4-pentenoate, namely a process for producing a (4E)-5-chloro-2-isopropyl-4-pentenoate represented by the following formula (4), which comprises reacting a compound represented by the following formula (2) in the presence of an aprotic solvent (II) with a base (II) and then with (1E)-1,3-dichloro-1-propene to give a compound represented by the following formula (3), and dealkoxycarbonylating either ester in the compound represented by the following formula (3), and a process for producing a (S)-(4E)-5-chloro-2-isopropyl-4-pentenoate represented by the following formula (5), which comprises optically resolving a (4E)-5-chloro-2-isopropyl-4-pentenoate represented by the formula (4) obtained by the above-mentioned process (wherein R is a lower alkyl group or an aralkyl group).