Methyl amine abamectin acylate and its preparation method and application

A technology of methylamino abamectin and organic acid salt, applied in the field of pesticides, can solve the problems of low activity, restricted drug application, narrow insecticidal spectrum, etc., and achieves the effect of good insecticidal effect

Inactive Publication Date: 2010-05-12
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The success of emamectin emamectin development has greatly improved the application of abamectin in the control of pests such as lepidopteran pests and pine wood nematodes. However, due to the low solubility of emamectin emamectin in water, it has extremely weak In addition, its insecticidal spectrum is too narrow, and its activity against many other important pests is not high, which greatly restricts the application of this type of drug in agricultural and forestry pests.

Method used

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  • Methyl amine abamectin acylate and its preparation method and application
  • Methyl amine abamectin acylate and its preparation method and application
  • Methyl amine abamectin acylate and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Accurately weigh 10 g of distilled water into a 10 ml graduated test tube with an electronic analytical balance, and place it in a water bath at 25°C. Then each compound was added thereto, and the mixture was shaken until it could no longer be dissolved. Repeat 3 times. After wiping off and weighing, the obtained results of the solubility of the substance in water can be calculated in Table 1. From Table 1, we can see that, compared with emamectin benzoate, the solubility of emamectin organic acid salt in water has increased by nearly tens to hundreds of times.

[0029] The solubility of table 1 emamectin organic acid salt in water

[0030]

[0031]

Embodiment 2

[0033] Under indoor conditions, the 3rd instar diamondback moth larvae were treated with leaf dipping method, and the LC of various pesticides on diamondback moth at 48 hours 50 See Table 2 for the values. As can be seen from Table 2, the activity of emamectin acetate to Plutella xylostella is much higher than that of other control agents, which are 4.52 times that of emamectin benzoate, 15.73 times that of abamectin, and that of profenofos. 335.81 times, 364.26 times of cyfluthrin, showing extremely strong insecticidal activity.

[0034] Table 2 The toxicity test results (48h) of pesticides such as emamectin acetate to the 3rd instar larvae of diamondback moth

[0035]

Embodiment 3

[0037] Under indoor conditions, the 3rd instar cotton bollworm larvae were treated by leaf dipping method, and the LC of various pesticides on cotton bollworm at 48 hours 50 See Table 3 for the values. As can be seen from Table 3, the activity of emamectin formate to cotton bollworm is much higher than that of other control agents, which are 4.29 times that of emamectin benzoate, 34.93 times that of abamectin, and 205.21 times that of cypermethrin. times, 115.82 times that of chlorchongdan, showing extremely strong insecticidal activity.

[0038] Table 3 Toxicity determination results (48h) of pesticides such as emamectin formate to the 3rd instar larvae of cotton bollworm

[0039]

[0040]

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Abstract

The present invention discloses a kind of methylaminoabamectin organic acid salt, its preparation method and application. Said invention also provides its chemical structure formula. As compared withabamectin and emamectin benzoate the ratio of its polar group in the compound can be greatly raised, and its solubility in the water also is obviously raised, so that it can greatly raise effect for controlling plant pests.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a class of methylaminoabamectin organic acid salts and a preparation method and application thereof. Background technique [0002] In 1975, researchers from Kitasato Research Institute in Japan isolated a Streptomyces avermitilis MA-4680 (NRRL8165) from soil samples in Shizuoka Prefecture, and then American Merck Company extracted a group of 8 A mixed natural product composed of two structurally similar homologues, and named avermectins (AVM for short). In 1981, the company realized the industrialization of Abamectin, which was gradually applied in agriculture, animal husbandry and sanitation. At the end of the 1980s, my country began to introduce abamectin strains. Shanghai Pesticide Research Institute, China Agricultural University and other units conducted research on strain isolation, mutation breeding, fermentation technology, extraction and refining, etc., which promo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H17/08A01N43/90A01P5/00A01P7/00
Inventor 徐汉虹胡林梁明龙万水娥夏坚金亚旭
Owner SOUTH CHINA AGRI UNIV
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