• Title, Summary, Keyword: 4,5,6,7-tetrahydroindazole

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Synthesis and Herbicidal Properties of 2-(5-lsoxazolinemethoxyphenyl)-4,5,6,7-tetrahydro-2H-indazole and Their Related Derivatives (새로운 2-(5-lsoxazolinemethoxyphenyl)-4,5,6,7-tetrahydro-2-indazole의 합성과 제초활성)

  • Jeon, Dong-Ju;Kim, Young-Mi;Park, Kwaun-Yong;Kim, Hyoung-Rae;Song, Jong-Hwan;Kim, Jin-Seog;Ryu, Eung-K.
    • The Korean Journal of Pesticide Science
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    • v.5 no.3
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    • pp.54-57
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    • 2001
  • A series of bicyclic 4,5,6,7-tetrahydroindazole derivatives 6 have been synthesized, and their herbicidal activities were studied in flooded paddy condition. The compounds 6 showed herbicidal effects to barnyardgrass and Monochoria and good tolerance against rice at a rate of $0.063kg/ha{\sim}0.25kg/ha$.

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Synthesis and herbicidal activities of heterocyclic PPO inhibitor derivatives substituted with epoxy groups (Epoxy Group이 치환된 헤테로고리형 PPO 저해제의 합성과 제초활성)

  • Jeon, Dong-Ju;Park, Kwaun-Yong;Park, Chang-Min;So, Won-Young;Kim, Hyoung-Rae;Song, Jong-Hwan;Hwang, In-Taek
    • The Korean Journal of Pesticide Science
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    • v.9 no.2
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    • pp.181-184
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    • 2005
  • The heterocyclic PPO inhibitor compounds have been studied due to their potent herbicidal effects without toxic to human and animals. We have designed and synthesized 4,5,6,7-tetrahydroindazole, maleimide, and tetrahydrophthalimide compounds carrying diverse epoxide substituents at 5- position of the phenyl group. Their herbicidal activities were evaluated under submerged paddy conditions. These results showed that 4,5,6,7-tetrahydroindazole compounds gave potent herbicidal activities especially to ECHOR, MOOVA, and CYPSE at a relatively low rate of 16 g/ha and improved tolerance on rice compared to S-275 as a standard herbicide in this experiment.

Synthesis and herbicidal activities of 2-(5-Propargyloxyphenyl)-4,5,6,7-tetrahydro-2H-indazole and their related derivatives (새로운 2-(5-Propargyloxyphenyl)-4,5,6,7-tetrahydro-2H-indazole의 합성과 제초활성)

  • Jeon, Dong-Ju;Park, Kwaun-Yong;Kim, Young-Mi;Kim, Hyoung-Rae;Song, Jong-Hwan;Hwang, In-Taek;Ryu, Eung-K.
    • The Korean Journal of Pesticide Science
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    • v.5 no.4
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    • pp.68-71
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    • 2001
  • Of the cyclic imide type compounds, S-275 was known to exhibit a potent herbicidal effects. We have designed and synthesized the compounds having diverse subsutuents in place of the chlorine group of bicyclic 4,5,6,7-tetrahydroindazole part of S-275. Their herbicidal activities were studied under flooded paddy conditions. The results showed that the most compounds gave relatively weak herbicidal activities, whereas tile compound substituted with methylthio group showed potent herbicidal effects against paddy weeds at a rate of 0.015 kg/ha and improved tolerance on rice compared to S-275.

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Synthesis and herbicidal activities of 9-(5-isoxazolemethoxy-phenyl)imino-8-thia-1,6-diazabicyclo[4.3.0]nonan-7-one and their related derivatives (새로운 9-(5-isoxazolemethoxyphenyl)imino-8-thia-1,6-diazabicycio [4.3.0]nonan-7-one 유도체의 합성과 제초활성)

  • Jeon, Dong-Ju;Park, Kwaun-Yong;Chung, Soon-Min;Kim, Hyoung-Rae;Song, Jong-Hwan;No, Zae-Sung;Hwang, In-Taek
    • The Korean Journal of Pesticide Science
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    • v.7 no.4
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    • pp.310-313
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    • 2003
  • New series of 9-(5-Isoxazolemethoxyphenyl)imino-8-thia-l,6-diazabicyclo[4.3.0]nonan-7-one which are the cyclic imide type compounds were designed and synthesized. The herbicidal activities of main dominant weeds to these compounds were evaluated under rice field condition. There is the possibility for a new herbicide since the most of compounds were excellent to main dominant weeds occurring in rice field without the serious rice injury.