English name: 2,6-Difluorobenzamide
Molecular formula: C7H5F2NO
EINEC number: 241-972-8
Product properties: white powder crystals, melting point 143-145 ° C, insoluble in water.
Product use: This product is an important intermediate in the synthesis of benzoylurea insecticides. It is used to synthesize the next intermediate 2,6-difluorobenzoyl isocyanate, and finally obtain hexaflumuron and diflubenzuron. For pesticides such as chlorfluazuron and guanidinium, 2,6-difluorobenzamide can also be directly used for the synthesis of diflubenzuron and hexaflumuron. This product can react with phenyl p-chloroisocyanate to produce a new fluorochemical carbamate insecticide. This product has a stomach toxic effect on the larvae of many important pests. It interferes with epidermal deposition, causing insects to die without normal molting or metamorphosis. It can also inhibit the formation of epidermis during the embryonic development of insect eggs, so that the eggs can not normally develop and hatch. At the same time, it also has a certain inhibitory effect on the fecundity of insects. This product has a wide spectrum of insecticides, especially for Lepidoptera larvae. Because of its unique mechanism of action, it is low-toxic to humans and animals, and has little harm to natural enemies. It is a relatively good selective insecticide developed in recent years.