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Application of 8-hydroxyquinoline manganese, magnesium and nickel complex in preparation of agricultural bactericide

A technology of hydroxyquinoline manganese and nickel complexes, which is applied in the direction of fungicides, chemicals for biological control, biocides, etc. It can solve the problems of increased resistance of pathogenic bacteria, environmental pollution, excessive drug residues, etc., and achieve selectivity High, high bactericidal activity, high product purity

Inactive Publication Date: 2021-03-05
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Chemical control has the characteristics of quick effect, convenience and high economic benefit. It is one of the main control measures for agricultural fungal diseases at present. Sex increase problem is getting worse

Method used

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  • Application of 8-hydroxyquinoline manganese, magnesium and nickel complex in preparation of agricultural bactericide
  • Application of 8-hydroxyquinoline manganese, magnesium and nickel complex in preparation of agricultural bactericide
  • Application of 8-hydroxyquinoline manganese, magnesium and nickel complex in preparation of agricultural bactericide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Synthesis of 2-methyl-8-hydroxyquinoline manganese complex (M-1)

[0026]

[0027] Please refer to the reference method for the synthesis method: Journal of Inorganic Biochemistry 154 (2016) 67-77. The specific synthesis operation is as follows: Synthesis of 2-methyl-8-hydroxyquinoline manganese complex (M-1) (Route IV): Weigh 2-methyl-8-hydroxyquinoline (10mmol) and place it in a 100mL three-necked bottle equipped with a condenser tube and a magnetic stirrer, dissolve it with 50mL of absolute ethanol, heat the solution to 70°C in a water bath, and weigh the chlorine Manganese chloride tetrahydrate (5mmol) was dissolved in 10mL deionized water, and the manganese chloride solution was slowly added dropwise (about 0.5h) to the ethanol solution of 2-methyl-8-hydroxyquinoline with a constant pressure dropping funnel, Magnetic stirring was carried out for 2 hours, and the reaction was stopped. A large amount of yellowish-brown solids precipitated out. After suction filtra...

Embodiment 2

[0030] Synthesis of 5-chloro-8-hydroxyquinoline manganese complex (M-2):

[0031] The experimental procedure is the same as in Example 1, except that 2-methyl-8-hydroxyquinoline is replaced by 5-chloro-8-hydroxyquinoline.

[0032]

[0033] M-2 yellow solid, yield 43.6%; FTIR (KBr) ν / cm -1 :3078.0 (Ar-H), 1576.2, 1536.2, 1496.9, 1460.3 (quinoline ring skeleton vibration), 823.9, 786.2, 739.4 (Ar-H).

Embodiment 3

[0035] Synthesis of 5-bromo-8-hydroxyquinoline manganese complex (M-3):

[0036] The experimental procedure is the same as in Example 1, except that 2-methyl-8-hydroxyquinoline is replaced by 5-bromo-8-hydroxyquinoline.

[0037]

[0038] M-3 yellow solid, yield 40.0%; FTIR (KBr) ν / cm -1:3074.8 (Ar-H), 1625.2, 1574.9, 1493.2, 1457.8 (quinoline ring skeleton vibration), 824.0, 782.5 (Ar-H).

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Abstract

The invention relates to the technical field of chemical pesticides and discloses application of any compound of 8-hydroxyquinoline manganese complexes (M1)-(M9) (chemical formula I), magnesium complexes (G-1)-(G-10) (chemical formula II) and nickel complexes (N-1)-(N-8) (chemical formula III) in preparation of drugs for preventing and treating sclerotinia rot of oilseed rape, botrytis cinerea, wheat scab and rice blast. Due to the fact that 8-hydroxyquinoline has wide biological activity and shows huge potential in antifungal aspect, and metal elements have good bactericidal performance, the8-hydroxyquinoline metal ion complex organically combines the biological activity of the 8-hydroxyquinoline and the biological activity of the metal element, and activity tests show that the compoundshows remarkable antibacterial activity, and can be developed as an agricultural bactericide. 1) the 8-hydroxyquinoline manganese complexes (M1)-(M9) are indicated by a formula I described in the descriptions of the invention; 2) the 8-hydroxyquinoline magnesium complexes (G1)-(G10) are indicated by a formula II described in the descriptions; and 3) the 8-hydroxyquinoline nickel complexes (N1)-(N8)are indicated by a formula III described in the descriptions.

Description

technical field [0001] The invention belongs to the technical field of chemical pesticides and discloses a new application of 8-hydroxyquinoline manganese complexes, magnesium complexes and nickel complexes, and specifically relates to 8-hydroxyquinoline manganese complexes, magnesium complexes and nickel complexes Application in preparation of medicines for preventing or resisting Sclerotinia sclerotiorum, tomato gray mold, wheat scab and rice blast. Background technique [0002] Chemical control has the characteristics of quick effect, convenience and high economic benefit. It is one of the main control measures for agricultural fungal diseases at present. The problem of sexual increase is getting worse. Therefore, the research and development of new high-efficiency and novel skeleton pesticides to prevent and control plant diseases has become an important topic for plant protection workers, and it is also the only way for the sustainable development of agricultural produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/42A01P3/00
CPCA01N43/42
Inventor 刘映前尹晓丹黄晓玲孙钰王仁轩赵中敏彭静文刘华
Owner LANZHOU UNIVERSITY
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