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:
Jul. 12, 1994
Filed:
Jan. 19, 1993
Applicant:
Inventor:
Stephen E Belmont, Baton Rouge, LA (US);
Assignee:
Albemarle Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585358 ; 585357 ;
Abstract
A process is provided for preparing an substituted cyclopentadiene by the steps of (a) reacting a vinyl ketone with a vinyl organometallic compound to form a divinyl tertiary alcohol and (b) dehydrating/cyclizing the tertiary alcohol such as with an acid and/or heat to form the substituted cyclopentadiene.