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Benziothiazolinone complexes with bactericidal activity, and preparation method and applications thereof

A technology of thiamethoxamin and complexes, which is applied in the field of thiamethoxamin metal complexes and their preparation, can solve the problems of agricultural product quality and safety, chemical pesticide abuse, excessive application, etc., and achieve significant bactericidal activity, resistance to drugs, and long-lasting effect Long term effect

Inactive Publication Date: 2019-06-18
西安临港科技创新发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The concept of “reducing application and increasing efficiency” of pesticides has great implications for pesticide scientific research. The phenomenon of chemical pesticides being abused, inefficiently used or excessively applied occurs from time to time, which causes major problems such as environmental pollution and agricultural product quality and safety.

Method used

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  • Benziothiazolinone complexes with bactericidal activity, and preparation method and applications thereof
  • Benziothiazolinone complexes with bactericidal activity, and preparation method and applications thereof
  • Benziothiazolinone complexes with bactericidal activity, and preparation method and applications thereof

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Embodiment 1

[0032] The synthesis of embodiment 1 thiomethanone copper complex

[0033] Weigh 2mmol thiamethoxam and 1mmol copper chloride dihydrate at a ratio of 2:1. Dissolve thiamethoxamin in 10 mL of ethanol, and dissolve copper chloride dihydrate in a mixed solution of 5 mL of distilled water and 5 mL of absolute ethanol. Add the copper chloride solution dropwise to the ethanol solution of thiamethoxamin at a temperature of 50°C, adjust the pH to about 8.0 with triethylamine, and react with magnetic stirring for 2 hours. The clear and transparent solution gradually becomes cloudy. After cooling and standing still, the obtained Green solid, suction filtered, washed with a small amount of water and ethanol, dried to obtain the copper complex of thiamethadone.

Embodiment 2

[0034] The synthesis of embodiment 2 thiamethoxam zinc complexes

[0035] Weigh 2mmol thiamethoxam and 1mmol zinc chloride at a ratio of 2:1. Dissolve thiamethoxamin in 10 mL of DMF, and dissolve zinc chloride in a mixed solution of 5 mL of distilled water and 5 mL of anhydrous methanol. At a temperature of 45°C, add the zinc chloride solution to the thiamethoxam solution drop by drop, adjust the pH to about 8.0 with triethylamine, and react with magnetic stirring for 1 hour. The clear and transparent solution becomes cloudy gradually. After cooling and standing still, a white solid is obtained. , filtered with suction, washed with a small amount of water and ethanol, and dried to obtain the thiamethoxamin zinc complex.

Embodiment 3

[0036] The synthesis of embodiment 3 thiamethinone manganese complexes

[0037] Weigh 4mmol thiamethoxam and 1mmol manganese chloride tetrahydrate at a ratio of 4:1. Dissolve thiamethoxamin in 15 mL of methanol solution, and dissolve manganese chloride tetrahydrate in a mixed solution of 5 mL of distilled water and 5 mL of anhydrous methanol. Add the manganese chloride solution dropwise into the thiamethoxam solution at a temperature of 55°C, adjust the pH to about 8.0 with ammonia water, and react with magnetic stirring for 4 hours. The clear and transparent solution becomes cloudy gradually. After cooling and standing still, a white solid is obtained. Filter, wash with a small amount of water and ethanol, and dry to obtain the manganese complex of thiamethoxam.

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Abstract

The invention discloses seven benziothiazolinone metal ion complexes including benziothiazolinone copper complex, benziothiazolinone zinc complex, benziothiazolinone manganese complex, benziothiazolinone cobalt complex, benziothiazolinone nickel complex, benziothiazolinone calcium complex, and benziothiazolinone magnesium complex, a preparation method of the benziothiazolinone metal ion complexes,and applications of the benziothiazolinone metal ion complexes in agricultural industry. The benziothiazolinone metal ion complexes are novel high-efficiency wide-spectrum complexes, and possess excellent prevention and treatment effects on citrus canker, mango bacterial angular leaf spot, potato black shank, wheat scab, cucumber downy mildew and pear anthracnose, possesses sustained release effect and long effect lasting period. Compared with benziothiazolinone, the advantages are that the bactericidal activity is better, and obvious synergistic effect is achieved.

Description

technical field [0001] The present invention relates to the fields of pesticide development and disease prevention and control, in particular to a thiamethoxamin metal complex with bactericidal activity and its preparation method and application. Background technique [0002] Benziothiazolinone (Benziothiazolinone) is a heterocyclic fungicide developed by Shaanxi Xidahuate Technology Industry Co., Ltd. Molecular formula: C 7 h 5 NOS, chemical name: 1,2 benzisothiazolin-3-one. Thiemadone is a high-efficiency, low-toxicity, broad-spectrum fungicide that can destroy pathogenic bacteria cell membrane proteins and synthesis systems, thereby inhibiting the reproduction of pathogenic bacteria, interfering with the metabolism of pathogenic bacteria cells, causing physiological disorders and leading to the death of pathogenic bacteria. The compound has a good control effect on a variety of crop diseases caused by bacteria and fungi, and has good control effects on citrus canker, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D275/04A01N55/02A01N43/80A01P1/00A01P3/00
Inventor 王鹏
Owner 西安临港科技创新发展有限公司
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