Novel thiosemicarbazone compound and preparation method thereof

A technology of thiosemicarbazone and thiosemicarbazide, which is applied in the fields of chemicals, biocides, and organic chemistry for biological control, and can solve the problems of single chemical agent, failure, and weakened control effect, and achieve operability strong effect

Active Publication Date: 2011-10-19
福建省农业科学院农业生物资源研究所
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Problems solved by technology

[0006]Chemical methods are mainly used to prevent and control diseases caused by these pathogenic bacteria, but the biggest problem in chemical control at present is the si

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  • Novel thiosemicarbazone compound and preparation method thereof
  • Novel thiosemicarbazone compound and preparation method thereof
  • Novel thiosemicarbazone compound and preparation method thereof

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preparation example Construction

[0031] 1. the preparation method of thiosemicarbazone compounds of the present invention

[0032] There are two preparation methods of thiosemicarbazone compounds of the present invention, and each preparation method is simple and convenient, and has strong operability; An example is given:

[0033] (1). One of the specific operation examples of the preparation method

[0034] Take by weighing thiosemicarbazide 0.910g (10mmol), it is dissolved in 60mL absolute methanol, and adds 3.520g (10mmol) griseofulvin and 10mL glacial acetic acid, then heated to reflux reaction under magnetic stirring (in order to guarantee the synthetic Productive rate, the reflux temperature is set to 60-70 ℃, and the reflux time is set to 3-7 days, in the present embodiment, the reflux temperature is 65 ℃, and the reflux time is 5 days), while monitoring the reaction by thin layer chromatography Process, after the reaction is completed, when the reaction system is cooled to room temperature, it is p...

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Abstract

The invention mainly provides a thiosemicarbazone compound which has an inhibition effect on fusarium oxysporum, fusarium moniliforme, fusarium solani and colletotrichum and a preparation method thereof. The chemical structural formula of the compound is shown in the specification. According to the invention, a novel way for preventing and controlling plant diseases caused by fusarium oxysporum, fusarium moniliforme, fusarium solani and colletotrichum is provided; and the preparation method is simple and convenient and has strong operability.

Description

【Technical field】 [0001] The invention relates to a compound and a preparation method thereof, in particular to a novel thiosemicarbazone compound and a preparation method thereof. 【Background technique】 [0002] Fusarium moniliforme is an important plant pathogen that can infect more than a dozen families of plants and cause many important diseases, such as corn seedling blight, ear rot, cotton red rot and rice bakanae disease, etc. And it can produce fumonisin to contaminate cereal products, causing livestock and human poisoning. [0003] Solanum disease Fusarium solani (Fusarium solani) causes root rot in eggplant, pea, Satawan, alfalfa, gerbera, saffron, and Phalaenopsis, causing serious damage. [0004] Anthracnose (Colletotrichum) is an important class of plant pathogenic fungi, widely distributed in tropical, subtropical and temperate regions, can cause many plant diseases, especially harmful to timber forests, special economic forests, seedlings and fruit trees. my...

Claims

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Application Information

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IPC IPC(8): C07D307/94A01P3/00
Inventor 朱育菁李智聪于晓杰刘波陈清西余山红唐建阳
Owner 福建省农业科学院农业生物资源研究所
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