Uses of chalcone synthesis on agricultural chemical

A technology of chalcones and compounds, which is applied in the field of pesticides, and can solve problems such as the application of chalcones in the control of agricultural pests that have not been seen

Inactive Publication Date: 2008-07-30
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no application of chalcones as pesticides for plant disease control and agricultural pest control.

Method used

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  • Uses of chalcone synthesis on agricultural chemical
  • Uses of chalcone synthesis on agricultural chemical
  • Uses of chalcone synthesis on agricultural chemical

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Compound of Example 1 preparation of

[0021] 4-Fluoroacetophenone (10 mmol, 1.38 g) was dissolved in 10 ml of ethanol, and furfural (10 mmol, 0.96 g) was added. Under the condition of constant stirring, NaOH powder (1 mmol, 0.04 g) was added several times, and stirred evenly. Keep the temperature of the reaction system at 0°C, after the addition is complete, continue the reaction at room temperature for 24 hours, add 100ml of water for dilution, a yellow solid precipitates, filter out the solid, wash it, dry it with infrared, and recrystallize it with absolute ethanol to obtain .

[0022] 1 H-NMR (400MHz, CDCl 3 ): δ6.52-6.53 (1H, m), 6.74 (1H, d, J=3.6), 7.17 (2H, d, J=8.4), 7.43 (1H, d, J=15.2), 7.54 (1H, d, J=1.2), 7.60 (1H, d, J=15.2), 8.07 (2H, d, J=8.0).

Embodiment 2

[0023] Compound of Example 2 preparation of

[0024] 4-Methoxyacetophenone (10 mmol, 1.50 g) was dissolved in 10 ml of ethanol, and furfural (10 mmol, 0.96 g) was added. Under the condition of constant stirring, NaOH powder (1 mmol, 0.04 g) was added several times, and stirred evenly. Keep the temperature of the reaction system at 0°C, after the addition is complete, continue the reaction at room temperature for 24 hours, add 100ml of water for dilution, a yellow solid precipitates, filter out the solid, wash it, dry it with infrared, and recrystallize it with absolute ethanol to obtain .

[0025] 1 H-NMR (400MHz, CDCl 3 ): 3.89 (3H, s) δ6.51-6.52 (1H, m), 6.70 (1H, d, J = 3.2), 6.97 (2H, d, J = 8.8), 7.47 (1H, d, J = 15.2 ), 7.52 (1H, d, J=1.6), 7.34 (1H, d, J=15.2), 8.04 (2H, d, J=8.8).

Embodiment 3

[0026] Compound of Example 3 preparation of

[0027] 2,4-Dichloroacetophenone (10 mmol, 1.88 g) was dissolved in 10 ml of ethanol, and furfural (10 mmol, 0.96 g) was added. Under the condition of constant stirring, NaOH powder (1 mmol, 0.04 g) was added several times, and stirred evenly. Keep the temperature of the reaction system at 0°C, after the addition is complete, continue the reaction at room temperature for 24 hours, add 100ml of water for dilution, a yellow solid precipitates, filter out the solid, wash it, dry it with infrared, and recrystallize it with absolute ethanol to obtain .

[0028] 1 H-NMR (400MHz, CDCl 3 ): 6.51-6.53 (1H, m), 6.72 (1H, d, J=3.6), 7.01 (1H, d, J=15.6), 7.26 (1H, d, J=15.6), 7.34 (1H, dd, J=2.0, J=8.0), 7.43 (1H, d, J=8.0), 7.47 (1H, d, J=2.0), 7.54 (1H, d, J=1.2).

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PUM

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Abstract

The invention provides a usage of Chalcone in a pesticide and relates to a novel usage of Chalcone. The invention proves that Chalcone has a better inhibition effect on plant pathogenic bacteria and epiphyte, also has a better contact toxicity on agricultural pests (like cabbage caterpillar, aphid and grasshopper) through the activity research on the Chalcone to a plurality of plant pathogen and agricultural pests, and provides a stable, efficient and innoxious novel green pesticide for the pesticide field.

Description

technical field [0001] The invention relates to the use of chalcone compounds in pesticides, belonging to the field of pesticides. Background technique [0002] Chalcones are widely found in nature and are a class of natural organic compounds found in various medicinal plants such as licorice and safflower, and their basic skeleton structure is 1,3-diphenylpropenone. Because chalcone molecules have greater flexibility, can bind to different receptors, and have many physiological and pharmacological activities, many patents have reported their activities in medicine, such as anticancer activity [WO2003106384 (2003) US2004259813 (2004), KR2005030653 (2005), CN1807405 (2006), CN1749237 (2006), CN1559398 (2005), US2007265317 (2007), CN101041646 (2007), FR2896245 (2007), WO20080186992 (2007). activity [BR2002004079 (2004)], antiviral activity [WO2006127539 (2006)], antibacterial activity [WO2003097576 (2003), WO2005042467 (2005), US2008009528 (2008)], anti-inflammatory activity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/08A01P3/00A01P7/00
Inventor 侯太平金洪陶科刘伟赵浩宇
Owner SICHUAN UNIV
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