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Polyhydroxy binaphthalene fatty acid preparation and preparing method thereof

A technology of polyhydroxydinaphthaldehyde fatty acid and polyhydroxydinaphthaldehyde, which is applied in the field of pesticides, can solve the problems of low control level, low virus specificity, restricted control level, etc., and achieves the effects of improving safety and reducing dependence.

Inactive Publication Date: 2004-04-21
吴云锋
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  • Application Information

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Problems solved by technology

However, due to the resistance of the virus to host cells and the low activity of the active ingredients of the drug, the level of prevention and treatment is not high. Up to now, there is no product that has dominated the market with outstanding control effects.
The main problems existing at present are: (1) lack of highly active single compound that directly acts on the virus
(2) Most of them are mixed (combined) preparations containing multiple components, mainly based on preventive effect, and the control effect is mostly 60-86%, which is low to virus specificity, which restricts the prevention and treatment of plant virus diseases in my country and other countries in the world The main reason for the level

Method used

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  • Polyhydroxy binaphthalene fatty acid preparation and preparing method thereof
  • Polyhydroxy binaphthalene fatty acid preparation and preparing method thereof
  • Polyhydroxy binaphthalene fatty acid preparation and preparing method thereof

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preparation example Construction

[0049] Realize the process preparation method of above-mentioned polyhydroxy bis-naphthaldehyde fatty acid preparation, comprise the following steps:

[0050] 1) preparation of polyhydroxy bis-naphthaldehyde:

[0051] ① Coarsely pulverize and finely pulverize the plant tissues containing polyhydroxy bisnaphthaldehyde, such as mugwort, annua, rapeseed, mallow stalk, thimble lacquer, grass cotton root bark, euphorbia, etc., as raw material powder;

[0052] ②Weigh 500g of raw material powder and add 500ml of 75% acetone, fully stir, filter, and collect the filtrate;

[0053] ③ Add 500ml of 75% acetone to the residue, stir and filter thoroughly, and collect the filtrate;

[0054] ④ Press step ③ to repeat the extraction once;

[0055] ⑤ The filtrate mixed three times, concentrated by distillation under reduced pressure, acetone is recovered, and the steam temperature is 32°C-58°C;

[0056] ⑥ Obtain 100ml of concentrated sample, add 35ml of glacial acetic acid, and chill at -20°C...

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Abstract

A polyhydroxy binaphthylaldehyde-fatty acid product used as a novel broad-spectrum antiviral agricultural chemical for agricultural crops, fruit tree, vegetables, flower, forest and medicinal herbs is prepared from polyhydroxy binaphthylaldehyde and fatty acid. Its advantages are high treating and preventing effect and safety, and low dependency.

Description

technical field [0001] The invention relates to a pesticide, in particular to a polyhydroxy bis-naphthaldehyde fatty acid preparation and a preparation method for preventing and treating viral diseases of crops, fruit trees, vegetables, flowers, trees, medicinal materials and other plants. Background technique [0002] Foreign countries began to discuss the chemical prevention and treatment of viral diseases from the 1970s. First, they found that polyphenols, tannins, alkaloids and flavonoids in plants had inhibitory effects on virus infection. Later, 2-thiouracil, 8 -Azapurines, pyridines, 2.4-D and gibberellins have antiviral effects. The antiviral drugs synthesized successively include ribavirin (Virazole, Germany, 1972), morpholine methyl ectoine (DD13, 1982; 1996), benzoamides (French Roussel-UCLAF company, 1991), three Azines and derivatives (Germany, 1992) and so on. Most of them are effective against animal viruses but not effective against plant viruses. Some drug...

Claims

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Application Information

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IPC IPC(8): A01N37/02
Inventor 吴云锋
Owner 吴云锋
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