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:
Jan. 29, 2008
Filed:
Apr. 14, 2004
Applicants:
Hong Gu, St. Louis, MO (US);
J. Kendall Killgore, St. Louis, MO (US);
John R. Duchek, St. Louis, MO (US);
Inventors:
Hong Gu, St. Louis, MO (US);
J. Kendall Killgore, St. Louis, MO (US);
John R. Duchek, St. Louis, MO (US);
Assignee:
Mallinckrodt Inc., Hazelwood, MO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 35/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing (+)-p-mentha-2,8-diene-1-ol comprising reacting (+)-limonene oxide with at least one amine in the presence of at least one Lewis acid to form amine adduct intermediates. The amine adduct is then oxidized to form an N-oxide that is pyrolized to form (+)-p-mentha-2,8-diene-1-ol.