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. 14, 1984
Filed:
Apr. 26, 1982
Applicant:
Inventors:
Yoshiyuki Okamoto, Ft. Lee, NJ (US);
Piotr S Wojciechowski, Lodz, PL;
Assignee:
Koppers Company, Inc., Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549 30 ; 549 35 ; 549 39 ;
Abstract
A process is disclosed for one-step preparation of sulfur-selenium fulvalenes by reaction of an acetylenic compound with carbon selenide sulfide or with a mixture of carbon diselenide and carbon disulfide under pressures of at least about 1,000 atmospheres. Fulvalene compounds made by the process are characterized in having at least one sulfur atom and at least one selenium atom in the ring structure of the fulvalene compound. Substituted diselenadithiafulvalenes made by this process are precursors to very pure diselenadithiafulvalene which is useful in preparing charge-transfer salts.