PREPARATION OF CIS-2-(1H-1,2,4-TRIAZOL-1-YLMETHYL)-2-(HALOPHENYL)-3-(HALOPHENYL)OXIRANE

PREPARATION OF CIS-2-(1H-1,2,4-TRIAZOL-1-YLMETHYL)-2-(HALOPHENYL)-3-(HALOPHENYL)OXIRANE

A process is described for the preparation of cis-2-(1H-1,2,4-triazol-1-ylmethyl)- 2-(halophenyl)-3-(halophenyl)oxirane I by epoxidizing Z-3-(1H-1,2,4-triazol-1-yl)-2-(halo- phenyl)-1-(halophenyl)propene II, where halogen is in each case fluorine, chlorine or bromine, which comprises reacting the cr...

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Bibliographische Detailangaben
Hauptverfasser: ISAK, HEINZ, KOBER, REINER, SEELE, RAINER, HICKMANN, ECKHARD
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:A process is described for the preparation of cis-2-(1H-1,2,4-triazol-1-ylmethyl)- 2-(halophenyl)-3-(halophenyl)oxirane I by epoxidizing Z-3-(1H-1,2,4-triazol-1-yl)-2-(halo- phenyl)-1-(halophenyl)propene II, where halogen is in each case fluorine, chlorine or bromine, which comprises reacting the crude product of the epoxidation with one or more reducing agents, which are added to the reaction mixture in a considerable excess over the amount necessary to destroy any peroxide compounds present.