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:
Apr. 28, 2009
Filed:
Aug. 22, 2003
Kei Sakamoto, Tokyo, JP;
Yasushi Nakano, Tokyo, JP;
Yoshihisa Kondou, Tokyo, JP;
Toshiro Yamada, Tokyo, JP;
Hisao Nemoto, Tokushima, JP;
Kei Sakamoto, Tokyo, JP;
Yasushi Nakano, Tokyo, JP;
Yoshihisa Kondou, Tokyo, JP;
Toshiro Yamada, Tokyo, JP;
Hisao Nemoto, Tokushima, JP;
Zeon Corporation, Tokyo, JP;
Abstract
2-Oxabicyclo[3.3.0]octane compounds represented by the following formula (1) (compound (1)); an optical resolver comprising at least one of the compounds (1); a process for producing the compounds (1) which comprises reacting a compound (2) or compound (3) with an alcohol (5) in the presence of an acid catalyst; a method of separating a diastereomer mixture of a compound (1); and a method of optically resolving an alcohol with the optical resolver. [In the formulae, Rto Reach represents hydrogen atom, etc.; Rrepresents an alkyl group, etc.; Rrepresents a hydrocarbon group, etc.; Rrepresents a hydrocarbon group, etc.; and A represents acetyl group, etc.]