| abstract |
The invention concerns novel compounds of the formulan wherein A, B, D and E are chosen from hydrogen, halogen, C 1 to C 6 alkyl, C 1 to C 6 haloalkyl and C, to C 6 alkoxy and Z is a tertiary or quaternary amino group. n The compounds are useful intermediates for the preparation of pyrethroids. In further embodiments the invention provides processes for the preparation of the compounds of formula I and processes for the synthesis of pyrethroids utilizing the compounds of formula I. |