3-取代弓形黄素类似物的合成及其除草活性。

IF 1.5 4区农林科学 Q2 ENTOMOLOGY Journal of Pesticide Science Pub Date : 2021-08-20 DOI:10.1584/jpestics.D21-010

Narihito Ogawa, Ryoya Imaizumi, Tatsuya Hirano, Jun Suzuki

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引用次数: 0

摘要

研究了在C-3位上引入芳香环(R)的23种弓黄素类似物1a-w的合成及其除草活性。在水田条件下，1k (R=2-CF3-C6H4)和1w (R=2-噻吩基)表现出优异的除草活性。在旱地条件下，我们发现弓形黄素类似物1a (R=C6H5)、1n (R=2- ch30 - c6h4)和1p (R=4- ch30 - c6h4)对紫锥藻(Echinochloa cross -galli, L)、cross -galli (ECHCG)、Chenopodium album和Amaranthus viridis (AMAVI)具有较宽的除草光谱。苯环1b上含2-氟基团的类似物对eccg和AMAVI均有较高的除草活性。

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Synthesis and herbicidal activity of 3-substituted toxoflavin analogs.

We investigated the synthesis and herbicidal activity of 23 toxoflavin analogs, 1a-w, in which aromatic rings (R) were introduced into the C-3 position. In paddy field conditions, 1k (R=2-CF₃-C₆H₄) and 1w (R=2-thienyl) showed excellent herbicidal activity. Under upland field conditions, we found that toxoflavin analogs 1a (R=C₆H₅), 1n (R=2-CH₃O-C₆H₄), and 1p (R=4-CH₃O-C₆H₄) exhibited wide herbicidal spectrum against Echinochloa crus-galli (L) var. crus-galli (ECHCG), Chenopodium album, and Amaranthus viridis (AMAVI). The analog with the 2-fluoro group on benzene ring 1b also showed high herbicidal activity against both ECHCG and AMAVI.

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来源期刊

Journal of Pesticide Science 农林科学-昆虫学

CiteScore

4.30

自引率

4.20%

发文量

审稿时长

18-36 weeks

期刊介绍： The Journal of Pesticide Science publishes the results of original research regarding the chemistry and biochemistry of pesticides including bio-based materials. It also covers their metabolism, toxicology, environmental fate and formulation.