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:
Jan. 04, 1994
Filed:
Dec. 18, 1992
Applicant:
Inventor:
Fumio Toda, Ehime, JP;
Assignee:
Daicel Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07B / ;
U.S. Cl.
CPC ...
568730 ; 568634 ; 568707 ; 568715 ; 568716 ; 568722 ; 568774 ; 568775 ;
Abstract
A biphenyl compound having the formula (I) is newly separated into its optical active compound, and useful as an optically separating agent: ##STR1## wherein W, X and Y are each an atom or atomic group selected from among H, F, Cl, Br, I, CH.sub.3, CF.sub.3, OH, OCH.sub.3, NH.sub.2 and N(CH.sub.3).sub.2 and Z is an atom or atomic group selected from among Cl, Br, I, CH.sub.3 and OCH.sub.3, R is an atomic group having 1 to 20 carbon atoms and containing a polar functional group selected from among ##STR2##