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:
Nov. 20, 2013
Applicant:
Transitions Optical, Inc., Pinellas Park, FL (US);
Inventors:
Meng He, Murrysville, PA (US);
Massimiliano Tomasulo, Monroeville, PA (US);
Allison Greene, Pittsburgh, PA (US);
Anil Kumar, Murrysville, PA (US);
Assignee:
Transitions Optical, Inc., Pinellas Park, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/02 (2006.01); C07D 307/89 (2006.01); C07D 209/70 (2006.01); C07C 69/017 (2006.01); C07C 67/00 (2006.01); C07D 311/78 (2006.01); C07C 65/17 (2006.01); C07C 51/09 (2006.01); C07C 65/26 (2006.01); C07D 209/58 (2006.01); C07D 307/77 (2006.01); C07C 63/44 (2006.01);
U.S. Cl.
CPC ...
C07D 307/89 (2013.01); C07C 51/09 (2013.01); C07C 63/44 (2013.01); C07C 65/17 (2013.01); C07C 65/26 (2013.01); C07C 67/00 (2013.01); C07C 69/017 (2013.01); C07D 209/58 (2013.01); C07D 209/70 (2013.01); C07D 307/77 (2013.01); C07D 311/78 (2013.01);
Abstract
The present invention relates to methods of preparing fused ring indeno compounds that involves reacting together a dienophile and a lactone compound, in the presence of a catalyst, and a carboxylic acid anhydride. With some embodiments, the fused ring indeno compound is represented by the following Formula (I-A), the dienophile is represented by the following Formula (II-A), and the lactone compound is represented by the following Formula (III-A):