Comprehensive explanation of pesticides of trifluoromethylpyridine derivatives

At present, the proportion of fluorinated pesticides in pesticides is 15%. From 2000 to the current development of pesticides, fluorochemicals account for 46%. Heterocyclic pesticides are also the focus of current market research. Pyridine rings are a common type of impurities. ring pesticides currently registered to use pesticides trifluoromethylpyridine derivatives mainly 26, 17 including herbicides, insecticides 5, 4 fungicides.
1. Five herbicides, flupirtine, which are flupirtine, flupirtine, pirfenoxacilin, high-efficiency pyridoxine (acid), high-efficiency pirfenoxacillin (ester). These herbicides are fatty acid synthesis inhibitors, which are applied to broad-leaved crop fields after buds and are widely used in soybean, peanut, cotton, rape, potato, watermelon, sweet potato and other crops and nurseries and orchards. Its intermediate is 2,3-dichloro-5-trifluoromethylpyridine.
There are 5 flurazepam series, which are flurazepam, flufenoxacil, Fluarifop, fluazifop-P-buty, and Poppenate-methyl. This herbicide is an acetyl-CoA carboxylase inhibitor, which has strong killing power for grassy weeds and is safe for broad-leaved crops. It can be used to control soybeans, cotton, potatoes, tobacco, flax, vegetables, peanuts, etc. Crop grass weeds. Its intermediate is 2-chloro-5-trifluoromethylpyridine.
There are 4 fluazioxasulfuron series, which are flurazine, flupyrsulfuron, flazasulfuron, and sulfoxamide. These herbicides are acetolactate synthase (ALS) inhibitors, which are sulfonylureas. It is a herbicide with high efficiency, low dosage, low toxicity, high selectivity and environmental friendliness. It is one of the most popular herbicides in the world.
There are three other types, which are thiabidine, flurazepam, and flupirazin, respectively. Thiobacillus was developed by Monsanto, and the patent has expired. It is used for pre-emergence weeding of fruit trees, forests, cotton, peanuts, etc. It is mainly used to control many annual grass weeds and some broad-leaved weeds. Flunarizine is developed by Monsanto and is a pyridine carboxylic acid herbicide. It is used for weeding in rice fields and lawns, and can prevent annual weeds such as alfalfa, ragweed, sedge, squash, and scutellaria. But it can't prevent firecrackers, water sedge, melon fur and wild sage. Fluroxypyr is developed by Syngenta and is a novel broad-spectrum herbicide for p-hydroxyphenylpyruvate dioxygenase inhibitors.
2, fungicides fungicides are mainly oxystrobin, fluazimid, fluazinam, Fluopyram four.
According to the China Pesticide Network , oxypoxystrobin was developed by DuPont of the United States, a 1988 patent, a mitochondrial respiratory inhibitor. Control foliar diseases of wheat such as leaf blight, leaf rust, wing blight, brown spot, and powdery mildew. Listed in 2001, with market sales of $0.5 billion in the year, DuPont’s 2009 sales were $115 million. Flupiropyramine was developed by Bayer and is a systemic fungicide for the control of oomycetes in grape and horticultural crops. It was launched in 2005. Developed by Bayer, Fluopyram is a succinate dehydrogenase (SDI) inhibitor that is used in more than 70 crops and was launched in 2011 with a market capitalization of $290 million.
3. Insecticides Insecticides are mainly chlorfluazuron, acetamiprid, acetamiprid, Sulfoxaflor, and flonicamid.
Flurazine was developed by Japan's Ishihara Corporation, a 1980 patent, a chitin biosynthesis inhibitor. It is effective against a variety of lepidopteran pests and dipteran, Orthoptera, and Hymenoptera pests. It is effective for insects on vegetables and belongs to “green pesticides”. It is the most representative variety of pesticide development in the world. Imidacloprid is developed by the Swiss company Novartis and belongs to the class of acyl ureas. At present, foreign countries are using a large amount of animal pests. It is developed by Sumitomo Chemical Co., Ltd., and has excellent insecticidal activity against many lepidopteran pests on vegetables and cotton. It is low-toxic to beneficial insects and can be used for integrated pest control. Sulfoxaflor was developed by Dow AgroSciences and was patented in 2007. It is mainly used to control pests such as cotton aphid, fruit fly and planthopper. Flufenidamide is developed by Japan's Ishihara Corporation, and it has a unique mechanism of action for selective Homoptera insect feeding blockers.
Herbicides account for about two-thirds of this type of structure, and insecticides and bactericides account for about one-third. Herbicides of the same type of structure sometimes develop a range of products, such as the pirfenoxacilin series, the flupirtine series. The chlorfluazuron in insecticides is currently a popular variety. Due to the unique mechanism of action of flonicamid, it deserves people's attention. The fungicide oxystrobin is widely used and its economic benefits are also very significant. 2,3-Dichloro-5-trifluoromethylpyridine and 2-chloro-5-trifluoromethylpyridine are generally used as intermediates for various pesticides, and their development value is also worthy of attention.

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