Helvetica Chimica Acta

Synthesen von polyhalogenierten Butyrylchloriden, Vorläufern der pyrethroiden Haloketene

P Martin, E Steiner, D Belluš

Index: Martin, Pierre; Steiner, Eginhard; Bellus, Daniel Helvetica Chimica Acta, 1980 , vol. 63, # 7 p. 1947 - 1957

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Abstract

Summary The copper (1)-catalyzed free radical addition of halomethanes to acrylates and the addition of halogenated acetic acid derivatives to fluoro-or chlorosubstituted ethylenes affords polyhalogenated butyric acid derivatives. Chlorides of these acids serve as precursors for haloketenes used in efficient syntheses of pyrethroids.