abstract |
Cyclopropanecarboxylic acids and esters are disclosed, having the formula: <IMAGE> (I) wherein A=CF3-C 3BOND C-; <IMAGE> X=H, F, Cl, Br; Y=Cl, Br; R=H, alkyl C1-C4 Compounds of formula I are intermediates for the preparation of insecticide compounds of the pyrethroid type. |