This invention relates to novel carboxylic acid esters represented by the formula (I) below, methods for production thereof and insecticides containing them as the active ingredient, and an alcohol compound useful as an intermediate for manufacturing carboxylic acid esters represented by the formula (I). ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; when R.sub.1 is a hydrogen atom, R.sub.2 represents a group of the formula ##STR2## in which X and Y are the same or different and represent a hydrogen atom, a methyl group, a halogen atom or a halogenated lower alkyl group, and when R.sub.1 is a methyl group, R.sub.2 represents a methyl group; R.sub.3 represents hydrogen atom or a methyl group; and R.sub.4 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group.
本发明涉及一种新型
羧酸酯,其表示式为(I),以及其生产方法和以其为活性成分的
杀虫剂,以及一种用于制造表示式(I)的
羧酸酯的中间体醇化合物。其中,R1表示氢原子或甲基基团;当R1为氢原子时,R2表示式的基团 ##STR2##,其中X和Y相同或不同,表示氢原子,甲基基团,卤素原子或卤代低碳基基团;当R1为甲基基团时,R2表示甲基基团;R3表示氢原子或甲基基团;R4表示氢原子,低碳基基团,低碳烯基基团或低碳炔基基团。