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:
Nov. 23, 1993
Filed:
Apr. 05, 1993
Applicant:
Inventors:
Stephen N Falling, Kingsport, TN (US);
Patricia Lopez-Maldonado, Kingsport, TN (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
549540 ; 549563 ;
Abstract
Disclosed is a process for the preparation of 3,4-dichloro and 3,4-dibromo-1,2-epoxybutane by the reaction of 3,4-epoxy-1-butene with chlorine or bromine in the presence of a catalytic amount of a tertiary amine or a hydrohalide of a primary, secondary or tertiary amine. The reaction preferably is carried out by the addition of 3,4-epoxy-1-butene and chlorine or bromine to an organic, halogenation solvent containing chlorine or bromine and tertiary amine or amine hydrohalide catalyst.