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. 13, 2017
Filed:
Dec. 23, 2014
Applicant:
Isagro S.p.a., Milan, IT;
Inventors:
Giovanni Meazza, Saronno, IT;
Laura Sillani, Borgomanero, IT;
Pierangelo Mereghetti, Inveruno, IT;
Daniele Forgia, Borgomanero, IT;
Assignee:
ISAGRO S.P.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 231/14 (2006.01); C07C 243/28 (2006.01);
U.S. Cl.
CPC ...
C07D 231/14 (2013.01); C07C 243/28 (2013.01);
Abstract
A process is described for the synthesis of pyrazoles having general formula (I) which comprises the steps of mixing a compound having general formula (II) and a 1,2-disubstituted hydrazine having general formula (III) to form a reaction intermediate having general formula (IV) and the reaction mixture obtained in step i), in an acid environment, cyclizes to form a pyrazole having general formula (I), according to reaction scheme 1