Intermediates

Aromatic amines are a kind of important nitrogen-containing compounds, which are widely used in explosives, dyes and pharmaceutical industries. The synthesis method is generally based on well-known reactions. Simple aromatic amines can be prepared by reduction of nitro compounds or by k-amino substitution of halogenated aromatics. In addition, there are other special preparation methods. in recent years, α- Naphthylamine (also known as 1-naphthylamine) has been well used in dye chemical industry and organic synthesis, especially in the synthesis of axial chiral catalysts.

Fluorescent indicator. Diazonium salt and aromatic amine reagent. Organic synthesis. Dye intermediates. It is mainly used to produce azo dyes and edible pigments.

Ethyl acetoacetate is an important raw material for organic synthesis. It is used as an intermediate for the synthesis of organophosphorus insecticide phosphate in pesticide production α- Ethyl chloroacetoacetate, pyrimidin intermediate 2-methoxy-4-methyl-6-hydroxypyrimidine, diazinon intermediate 2-isopropyl-4-methyl-6-hydroxypyrimidine, carbamate insecticide carbaryl, fungicide hymexazol, herbicide metronidazole, nicotinic acid, chemical Book rodenticide, warfarin, etc. are also new fungicides, such as Cyprodinil, chlorpyrifos In addition, ethyl acetoacetate is also widely used in medicine, plastics, dyes, spices, varnishes and additives industries.

Zinc dibenzyldithiocarbamate is a useful analytical tool for the detection of copper in plant and biological tissues. It is also used to prepare dithiocarbamate ligands for stabilizing gold nanoparticles.

4-Aminobenzoic acid is one of the most important aromatic amino acids. It is an important part of essential substances for cell growth and division. It plays an irreplaceable role in the metabolism of life, and has a high content in yeast, liver, bran and malt. 4-Aminobenzoic acid can relieve anemia, viral anemia, stomatitis diarrhea and pregnancy anemia caused by red blood cell deficiency. 4-Aminobenzoic acid as the main component of high-efficiency nutrition compound vitamin B-100, can effectively improve the three major metabolism of human body, comprehensively fight fatigue and relieve pressure. 4-Aminobenzoic acid combined with penicillin or streptomycin can effectively improve the antibacterial effect. 4-Aminobenzoic acid is also an important fine chemical raw material. In medicine, it is a key intermediate for the synthesis of blood enriching agents folic acid, procoagulant and carboxyl benzamine. It is also used in the manufacture of drugs for rickets, rheumatism, arthritis and tuberculosis. In the cosmetics industry, it is an important intermediate of body sunscreen and hair growth agent; In organic chemical industry, it can be used to prepare various ester products, as resin modifier, and as special intermediate for synthesis of reactive dyes and azo dyes.