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:
Dec. 08, 2015
Filed:
Sep. 13, 2011
Igor Alabugin, Tallahassee, FL (US);
Runa Pal, Tallahassee, FL (US);
Igor Alabugin, Tallahassee, FL (US);
Runa Pal, Tallahassee, FL (US);
The Florida State University Research Foundation, Inc., Tallahassee, FL (US);
Abstract
A method for preparing a cyclobutene compound or a cyclopentenone is provided. The method comprises contacting an α,β-diketone with a metal acetylide at a temperature below 0° C. to thereby form a reaction mixture comprising a bis-alkyne precursor. The bis-alkyne precursor rearranges into a bis-allenic intermediate, which undergoes further rearrangement into the cyclobutene compound or the cyclopentenone compound as the temperature of the reaction mixture increases from below 0° C. to above 0° C.