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:
Feb. 25, 1992
Filed:
Mar. 28, 1990
Applicant:
Inventor:
Egidio Molinari, Longone Al Segrino, IT;
Assignee:
Erregierre Industria Chimica S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548341 ;
Abstract
A process for preparing clotrimazole by reacting 2-chlorotriphenylmethylchloride with imidazole in a hydrocarbon solution in the presence of a neutralizing agent, followed by nitration of the product obtained. The nitrate is reconverted into the free base with caustic alkali.