It is an organic compound with the chemical formula C8H8N2O3.
Properties: It is a powdery yellow crystal with a strong smell. It has a melting point of 78-80 degrees Celsius and a boiling point of 243 degrees Celsius. The compound is almost insoluble in water, but soluble in organic solvents such as diethyl ether, acetone and chloroform.
Uses: Mainly used in the manufacture of pesticides, such as imidacloprid. It can also be used as an intermediate for organic synthesis reactions.
preparation method: preparation methods usually include nitration reaction and ammonification reaction. First, the nitration reaction of methoxy -5-chloro -3-methyl pyridine is carried out to obtain 2-methoxy -5-chloro -3-nitropyridine, and then the amination reaction is carried out with the amination reagent to produce the final product.
Safety information: Pay attention to safe operation during preparation and use, and avoid contact with skin and inhalation of dust. It is a flammable substance and should be kept away from sources of ignition. During storage and use, care should be taken to avoid contact with strong oxidants and strong acids to avoid dangerous reactions.