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:
Dec. 25, 1984
Filed:
Apr. 18, 1983
Gwilym R Davies, Cheshire, GB;
Alfred G Williams, Berkshire, GB;
Imperial Chemical Industries PLC, London, GB;
Abstract
A process for the production of epoxides of the formula (I): ##STR1## in which the benzene ring A is substituted with 1 to 3 halogen atoms, which are the same or different, and optionally carries other substituents, and R.sup.1 is ##STR2## which is the same as or different from the other group ##STR3## or C.sub.1-6 alkyl, the process comprising electrolyzing the corresponding alkene of the formula (II): ##STR4## in a medium comprising a solvent for the alkene and an aqueous solution of a halogen salt, the solvent/water ratio by weight being greater than unity, the solvent being miscible with water at the solvent/water ratio used and being chemically inert to both the alkene and the free halogen produced from the halogen salt by the electrolysis. The epoxides are useful in the synthesis of fungicidal compounds and certain of the epoxides are novel compounds.