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:
Nov. 26, 2002
Filed:
Mar. 18, 2002
Applicant:
Inventors:
Shinya Yamada, Kanagawa, JP;
Yoshiki Okeda, Kanagawa, JP;
Yoji Hori, Kanagawa, JP;
Toshimitsu Hagiwara, Kanagawa, JP;
Assignee:
Takasago International Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C 3/500 ;
U.S. Cl.
CPC ...
C07C / ; C07C 3/500 ;
Abstract
Cis-3,7-dimethyl-2,7-octadienylamine containing from 2 to 10% by weight cis-3,7-dimethyl-2,7-octadienylamine is prepared by subjecting a mixture of an alkylamine and isoprene in a molar ratio of 1:4 to 1:4.5 to telomerization at 80 to 100° C. for from 2.5 to 3.5 hours in the presence of an alkyllithium catalyst and/or phenyllithium catalyst.