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. 17, 1991
Filed:
Aug. 10, 1990
Applicant:
Inventors:
Kichisaburo Hamamura, Chiba, JP;
Yutaka Ohnuki, Aichi, JP;
Yukio Narabe, Ibaraki, JP;
Yoshihiro Hisatake, Ibaraki, JP;
Takashi Banba, Ibaraki, JP;
Shizumasa Kijima, Chiba, JP;
Assignee:
Eisai Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585600 ; 549407 ; 560127 ; 568408 ; 568417 ; 570189 ; 570217 ; 585641 ;
Abstract
A terpene compound having the formula (III) is produced by reacting an allylic halide having the formula (I) with a Grignard reagent having the formula (II) in the presence of anhydrous zinc chloride and a copper compound or an organic zinc halide compound having the formula (IV) in the presence of a copper compound, provided that when A-A is C-C, R' is hydrogen and when A-A is C=C, X is chlorine. ##STR1##