Purpose 1 Used for preparing drugs, fungicides, insecticides, etc Usage 2 Pharmaceutical raw materials, organic synthesis, special organic solvents. Usage Three Organic synthesis. Insecticides. Fungicides. Epoxy resin curing agent. Rubber accelerator. Inhibitors. summary Tetrahydropyrrole, with the chemical formula C4H9N, is a colorless or yellow liquid with a special odor that can easily turn yellow when exposed to light or humid air. It is easily soluble in water and ethanol and has corrosiveness and flammability. nature Tetrahydropyrrole is a cyclic secondary amine that appears as a colorless transparent liquid with a special odor. It turns yellow when exposed to light or damp air, and is easily soluble in water and ethanol. It is corrosive and flammable. application Tetrahydropyrrole has the properties and reactions of a general amine. It has extremely wide applications in fields such as medicine, food, pesticides, daily chemicals, coatings, textiles, printing and dyeing, papermaking, photosensitive materials, polymer materials, desulfurizers, zeolite template materials, etc. Pyrrolidine Pyrrolidine, also known as tetrahydropyrrole, is a colorless to slightly yellow liquid with a pungent ammonia odor that emits smoke in the air and is toxic. Relative density 0.8618, boiling point 88-89 ℃, refractive index 1.4402 (28 ℃). Strong alkalinity, miscible with water, soluble in ethanol, ether, and chloroform. Pyrrolidine can be synthesized by catalytic hydrogenation of pyrrole. Pyrrolidine is a natural substance existing in tobacco and carrot leaves. The molecular structure of pyrrolidine is cyclic secondary amine, and its reaction is the same as that of ordinary amines. Pyrrolidine is an important organic chemical raw material that can be used for the preparation of drugs, fungicides, insecticides, etc. Preparation method: ① Using 1,4-butanediol as the raw material, dehydration is carried out to generate tetrahydrofuran, which then reacts with ammonia to obtain pyrrolidine. ② Tetrahydropyrrole can be prepared by reacting furan with ammonia under the action of a catalyst at 400 ℃. ③ Pyrrolidine can be prepared by reacting 1,4-dichlorobutane with ammonia. ④ Tetrahydropyrrole can be prepared by reduction using pyrrole as raw material and ruthenium or rhodium as catalyst. The above information was compiled by Tongtong Editor from Chemicalbook.
