Novel compounds are provided of formula I wherein:
R2 represents an a-branched alkyl group and R represents hydroxy halo or alkyl, useful as intermediates for the preparation of insecticidal compounds of formula I where R represents the residue of an alcohol, the ester of which the crysenthemic acid, permethrin acid or cyhalothrin acid has insecticidal properties.
提供了式 I 的新型化合物,其中:R2 代表 a-支链烷基,R 代表羟基卤代或烷基,可用作制备式 I 杀虫化合物的中间体,其中 R 代表醇的残基,其酯具有杀虫特性的隐翅虫酸、
氯菊酯酸或
氯氰菊酯酸。