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. 25, 1987
Filed:
Jun. 10, 1986
Applicant:
Inventors:
Marco Foa', Novara, IT;
Norberto Gatti, Galliate, IT;
Assignee:
Montedison S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568424 ;
Abstract
A process for the manufacture of o-nitrobenzaldehyde by oxidation of o-nitrotoluene, characterized in that o-nitrotoluene is made to react with an aqueous solution containing Cerium.sup.iv perchlorate and from 5 to 9 moles/liter of perchloric acid; according to a preferred embodiment, the dispersion of o-nitrotoluene in an aqueous solution containing from 5 to 9 moles per liter of perchloric acid is first prepared and then an aqueous solution is gradually added, containing Cerium.sup.iv perchlorate and 5-9 moles/liter of perchloric acid.