N-vinylcarbazole demand is stable and market concentration is high

The molecular formula of N-vinylcarbazole is C14H11N, and its appearance is an off-white crystalline powder. N-Vinylcarbazole is an important nitrogen-containing aromatic heterocyclic compound with special photoelectric properties, which is consistent with the performance of organic photoelectric functional materials. It has strong intramolecular electron transfer function, and its thermal stability is also very good. Better.

At present, the main methods for synthesizing N-vinylcarbazole include the following: (1) direct reaction of carbazole potassium salt and vinyl chloride at high temperature to obtain N-vinylcarbazole; carbazole and 1,2-dichloroethyl Under alkaline conditions, alkane first generates 9-(β-chloroethyl)carbazole, and then dehydrochlorides to obtain N-vinylcarbazole; carbazole and ethylene oxide react under alkaline conditions to obtain 9-(β -Hydroxyethyl) carbazole, which loses water in an ethanol solution of potassium hydroxide to obtain N-vinylcarbazole; carbazole and acetylene react directly to synthesize N-vinylcarbazole, etc.

N-Vinylcarbazole has two major application fields: one is the field of liquid crystal materials, and the other is the field of pharmaceutical intermediates. Among them, the application in the field of liquid crystal materials requires higher purity. However, due to factors such as low market development, low awareness of the product by downstream users, and high prices, the demand for N-vinylcarbazole in the above two application fields is not large. According to the released “China N-Vinyl Carbazole Industry Market Monitoring and Future Development Prospects Research Report 2022-2026”, From 2017 to 2021, China’s N-vinylcarbazole demand growth rate will remain between 3% and 5%. In recent years, as the difficulty of developing the domestic market has increased, companies have gradually strengthened the development of foreign markets. Japan and South Korea are the main export regions for China’s N-vinylcarbazole.

Due to the small demand and slow growth, my country’s N-vinylcarbazole industry has not been highly motivated to invest in recent years. Moreover, the N-vinylcarbazole synthesis process is complex and the technology entry barriers are high, which also blocks the entry of investors. . In addition, N-vinylcarbazole is a hazardous chemical and will produce pollution during the production process. my country’s stricter supervision of hazardous chemicals and the improvement of environmental protection requirements have also made the development of this industry more difficult and the profitability of enterprises has declined. decline. Therefore, the number of manufacturing companies in my country’s N-vinylcarbazole industry remains at the original level. At present, the main manufacturers of N-vinylcarbazole in my country include Zibo Aote Fine Chemical Factory, Juye Modern Fine Chemical Co., Ltd., Changzhou Nimo Chemical Co., Ltd., etc.

Industrial analysts said that although China’s N-vinylcarbazole market demand will still show a growth trend in the future, the overall market size will still be However, the application of N-vinylcarbazole in Japan and South Korea is relatively mature, and my country encourages companies to “go global.” Therefore, N-vinylcarbazole companies can increase their efforts to develop international markets.