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. 17, 1989
Filed:
Feb. 25, 1988
Applicant:
Inventors:
Hisashi Yamamoto, Aichi, JP;
Keiji Maruoka, Nagoya, JP;
Assignee:
Toyo Stauffer Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556432 ;
Abstract
Optically active 3,3'-disilylbinaphthol derivatives are disclosed, which are represented by a general formula (I) ##STR1## (wherein, R.sup.1, R.sup.2 and R.sup.3 indicate mutually same or different lower alkyl groups and/or aromatic groups), and the steric configuration of which is R form or S form.