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:
Aug. 22, 2006
Filed:
Apr. 14, 2004
Yong Seo Cho, Seoul, KR;
Moon Ho Chang, Seoul, KR;
Hun Yeong Koh, Seoul, KR;
AE Nim Pae, Seoul, KR;
Hyun Jung Kang, Seoul, KR;
Yong Seo Cho, Seoul, KR;
Moon Ho Chang, Seoul, KR;
Hun Yeong Koh, Seoul, KR;
Ae Nim Pae, Seoul, KR;
Hyun Jung Kang, Seoul, KR;
Abstract
The present invention relates to a synthesis of a 7-membered carbocyclic compound having diexomethylene groups, more particularly to a synthesis of a 7-membered carbocyclic compound having diexomethylene groups, a novel compound having the structure represented by the following Chemical Formula 1, from trimethylsilanylmethyl-allenol derivative by the intramolecular Prins cyclization using Lewis acid. The 7-membered carbocyclic compound is a useful intermediate for synthesis of other multicyclic compounds. In Chemical Formula 1, Ris a Cto Calkyl group, and Rand Ris respectively a hydrogen atom, or R, Rand Rmay be connected with neighboring substituents to form a 5 to 10-membered aliphatic or aromatic ring.