Thiazole oxazoles organic copper compound, its preparation method, its preparation and its purpose for preventing and treating plant diseases in agriculture

Abstract

The invention discloses a thiazole oxazoles organic copper compound, its preparation method, its preparation and its purpose for preventing and treating plant diseases in agriculture. The method comprises the following steps 2-mercaptobenzothiazole and 3-hydroxy-5-methyl isoxazole (hymexazol) and divalent copper salt are added in an organic solvent, and reacted for 1-2 hours, after the reaction is finished, the processes of separating, washing and drying are carried out to obtain the novel thiazole oxazoles organic copper compound copper-2-mercaptobenzothiazole-3-hydroxy-5-methyl isoxazole. The compound possesses stable property and wide sterilization spectrum, and can be processed to a wettable powder, a dry suspending agent, a water suspending agent and the like, and possesses substantial efficacy for a plurality of crops main diseases, and possesses special efficacy for preventing and treating diseases caused by fusarine, aphanomyces, pythium and corticiaceae, as well as various soil borne disease and damping-off of rice seedlings.

Description

technical field [0001] The invention belongs to the technical field of pesticide chemical industry, and particularly relates to a thiazole oxazole organic copper compound, a preparation method, a preparation and an application in preventing and treating agricultural plant diseases. Background technique [0002] The molecular formula of 2-mercaptobenzothiazole is C 7 h 5 NS 2 , molecular weight 167.24, light yellow powder, soluble in alkaline solutions such as propanol, ethanol, chloroform, ammonia, sodium hydroxide and sodium carbonate, slightly soluble in benzene, insoluble in water and gasoline, mainly used as rubber vulcanizing agent (promoting Agent M) is also used as a pesticide fungicide, commonly known as hydrogen sulfide agent or M agent, but its activity is low and has not been widely used. 2-Mercaptobenzothiazole is also industrially used as a corrosion inhibitor for metal copper. In order to explore the corrosion inhibition mechanism of 2-mercaptobenzothiazole,...

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Problems solved by technology

[0002] The molecular formula of 2-mercaptobenzothiazole is C 7 h 5 NS 2 , molecular weight 167.24, light yellow powder, soluble in alkaline solutions such as propanol, ethanol, chloroform, ammonia, sodium hydroxide and sodium carbonate, slightly soluble in benzene, insoluble in water and gasoline, mainly used as rubber vulcanizing agent (promoting Agent M), also used as a pesticide fungicide, commonly known as hydrogen sulfide agent or M agent, but its activity is low and has not been widely used

It is characterized by an advantageous protective fungicide with low cost, but its disadvantages are: first, it is easy to cause phytotoxicity, and its use is prohibited or restricted during the flowering and young fruit stages; second, its miscibility is poor, and most of the inorganic copper preparations are Alkaline pesticides cannot be mixed with most pesticides, and it is inconvenient to use; third, it is easy to cause the value-added of mites and rust ticks, which increases the cost of control in disguise; fourth, the treatment effect is not strong, and it is not easy to use on rice use

[0008] Although copper fungicides have many advantages, excessive copper ions can easily cause phytotoxicity to crops

Have not seen the related report of novel thiazole oxazole organocopper compound copper-2-mercaptobenzothiazole-3-hydroxyl-5-methylisoxazole and preparation method thereof at present, have not found that this novel thiazole oxazole Related reports on the use of organocopper compound copper-2-mercaptobenzothiazole-3-hydroxy-5-methylisoxazole in the control of agricultural plant diseases

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