Pesticide containing comptothecin or dreivates of camptothecin, and preparation method

A technology of camptothecin and its derivatives, which is applied in the field of insecticides containing camptothecin or camptothecin derivatives and its preparation, can solve the problems of poor implementability, general drug effect, and difficulty in dissolving, and achieve good killing effect. Insect effect, drug effect, environmental protection, pollution-free, high activity effect

Active Publication Date: 2006-04-19
YIFAN AGRI CHEM PLANT ZHEJIANG PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And add additive 5~11%, water 30~36%, in fact, because above-mentioned alkaloid is all natural alkaloid, and all difficult to dissolve in water, especially camptothecin, this patent implementability is relatively poor, and drug effect generally

Method used

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  • Pesticide containing comptothecin or dreivates of camptothecin, and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Put 100L ethanol into the reaction kettle or stirring tank, add 60L calcium dodecylbenzenesulfonate, after stirring, add 40L OP-10, stir evenly, that is, compound emulsifier, set aside.

[0027] (2) Put 400L dimethyl sulfoxide into another reaction kettle or stirring tank, add 0.5kg of camptothecin with a purity of 90%, heat to 35°C and keep stirring, after the camptothecin is completely dissolved, add the above-mentioned Composite emulsifier 20L, stir evenly, add 15L JFC and 5L azone, stir evenly, the final product is served.

Embodiment 2

[0029] The added purity is 90%-camptothecin is 2kg, other conditions are identical with embodiment 1.

Embodiment 3

[0031] The added purity is 90% camptothecin is 5kg, other conditions are identical with embodiment 1.

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Abstract

An insecticide for the pests in homopteran, thysanoptera, lepidoptera and coleoptera is prepared from camptothecine or its derivative, emulsifier, penetrant and organic solvent through proportional mixing.

Description

technical field [0001] The invention belongs to the technical field of insecticides, especially insecticides for preventing and controlling pests of Homoptera, Thysanoptera, Lepidoptera and Coleoptera, in particular to an insecticide containing camptothecin or camptothecin derivatives and its preparation method. Background technique [0002] Camptothecin (CPT) is a kind of pyrroloquinoline alkaloid, and the general chemical structure formula of camptothecin and its derivatives is as follows: [0003] [0004] General formula (I) [0005] Among them, R1-10 in the chemical structure represents a hydrogen atom, methyl, ethyl, propyl, butyl, hydroxyl, nitro, amino, oxymethyl, methylaminooxy, fluoroethyl, chloroethyl, One of bromoethyl, nitrogen, silyl and alkoxy. Camptothecin is mainly derived from the unique plant Camptotheca involucrata in my country. In 1966, Wall et al. isolated it for the first time from Camptothec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01P7/04
Inventor 马建义张立钦马良进王品维王记祥
Owner YIFAN AGRI CHEM PLANT ZHEJIANG PROV
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