A difluoroalkene derivative which is sufficiently effective in controlling various pests even when used in a small dose and is highly safe for crops, natural enemies to the pests, and animals; and an intermediate for the derivative. The difluoroalkene derivative is represented by the general formula: [I] wherein L
1
and L
2
are the same or different and each represents oxygen or sulfur; n is an integer of 2 to 8; and Q represents a 5- to 12-membered heterocyclic group having any desired heteroatom selected among nitrogen, oxygen, and sulfur.
1
一种二
氟烯衍
生物,即使使用小剂量也足以有效控制各种害虫,并且对作物,害虫的天敌和动物非常安全;以及该衍
生物的中间体。该二
氟烯衍
生物由通式表示:[I]其中L1和
L2相同或不同,每个代表氧或
硫;n为2至8的整数;Q表示任何所需杂原子在氮、氧和
硫之间选择的5-至12成员杂环基团。