Pyridine pesticide intermediates

Pyridine pesticide intermediates are known as the fourth generation of pesticides, with high efficiency, low toxicity, good environmental compatibility with humans and organisms, in line with the development of pesticides and trends, pyridine-ring-containing compounds have gradually become one of the main directions of pesticide creation. In addition to pyridine, the domestic production of alkyl pyridine, cyano-pyridine, halogenated pyridine, aminopyridine, vinyl pyridine and other products have shown the momentum of the development of scale and series. At present, China has become one of the major producers and consumers of pyridine and its downstream products in the world. Due to the rapid expansion of production capacity, its market price is declining year by year, the domestic price of pyridine in 2007 for 60,000 yuan / t, in October 2010 slipped to 30,000 yuan / t or so, the supply of raw materials and the price is gradually low, for the downstream pyridine pesticides to create a good opportunity for the development and production of pesticides. Production, the pyridine structure of almost all categories of pesticides, agrochemical demand for pyridine compounds in 2009 accounted for more than 50% of its total consumption. According to the latest information, there are more than 70 kinds of commercialized pyridine-containing pesticides, and as of June 2010, there were 45 kinds of pyridine-containing pesticides registered in China, including paraquat, chlorpyrifos, imidacloprid, nicosulfuron and other mainstream pesticide varieties with mature market, large production capacity and output. Domestic pyridine supply is sufficient and the price is low, which is conducive to China's paraquat and other bulk pyridine pesticides to further reduce the cost and improve the competitiveness of the international market. At the same time, it is also conducive to the scale expansion of pyridine downstream pesticides that have been developed and produced in China with good market prospects, such as fludioxonil, fluroxypyr, pyraclostrobin, pyraclostrobin, acetamiprid, aldicarb, pyrazinone and pyraclostrobin. [...]