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:
Jun. 12, 1990
Filed:
May. 15, 1989
Applicant:
Inventors:
Pierre Chabardes, Ste Foy Les Lyon, FR;
Jacques Chazal, Saint-Fons, FR;
Assignee:
Rhone-Poulenc Sante, Antony, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568460 ; 568449 ; 568465 ; 568458 ; 568485 ; 568489 ;
Abstract
Citral is prepared from prenol and prenal by condensation to form an acetal followed by cracking, both operations being effected in the presence of a lithium halide (e.g. lithium chloride) as catalyst.