Inhibitory Activity of <i>N</i>-Substituted-2-piperidones with a 1, 4-Benzodioxan Ring on Germination of Barnyardgrass
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- TSUKADA Hidetaka
- Laboratory of Pesticide Chemistry, Department of Applied Genetics and Pest Management, Faculty of Agriculture, Kyushu University
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- YAMADA Naotaka
- Laboratory of Pesticide Chemistry, Department of Applied Genetics and Pest Management, Faculty of Agriculture, Kyushu University
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- HASHIMOTO Kazuki
- Laboratory of Pesticide Chemistry, Department of Applied Genetics and Pest Management, Faculty of Agriculture, Kyushu University
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- TANIGUCHI Eiji
- Laboratory of Pesticide Chemistry, Department of Applied Genetics and Pest Management, Faculty of Agriculture, Kyushu University
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- KUWANO Eiichi
- Laboratory of Pesticide Chemistry, Department of Applied Genetics and Pest Management, Faculty of Agriculture, Kyushu University
Bibliographic Information
- Other Title
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- 1,4-ベンゾジオキサン環をもつ<i>N</i>-置換-2-ピペリドン類のヒエ種子発芽に対する阻害活性
- Inhibitory Activity of N-Substituted-2-piperidones with a 1,4-Benzodioxan Ring on Germination of Barnyardgrass
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Abstract
A variety of 3-substituted-2-piperidones and related compounds were evaluated for their activity to inhibit germination of barnyardgrass (Echinochloa utilis) seeds. 3-[1-(1, 4-Benzodioxan-6-yl)-1-hydroxymethyl]-N-benzyl-2-piperidone (22) showed extremely high inhibitory activity. Studies on the structure-activity relationship indicated that a 1, 4-benzodioxan ring, a hydroxy substituent at the α-position of the benzyl group and a 2-piperidone ring were significant for higher activity. Of the compounds tested, 3-[1-(1, 4-benzodioxan-6-yl)-1-hydroxymethyl]-N-cinnamyl-2-piperidone (55) was the most effective, showing more than 90% germination inhibition at 1 nM. In both compounds 22 and 55, only erythro isomers inhibited germination of barnyardgrass seeds, while threo isomers were inactive even at 1μM. This result indicated that the stereochemistry of 1, 4-benzodioxan moiety in the erythro isomer, which is fixed by an intramolecular hydrogen bond between the hydroxy group and the carbonyl group, was essential for activity. The erythro-22 and 55 were less active against rice seeds when compared to barnyardgrass.
Journal
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- Journal of Pesticide Science
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Journal of Pesticide Science 26 (2), 143-148, 2001
Pesticide Science Society of Japan
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Details 詳細情報について
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- CRID
- 1390001205210698496
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- NII Article ID
- 110001713238
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- NII Book ID
- AN00196227
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- ISSN
- 03851559
- 13490923
- 1348589X
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- NDL BIB ID
- 5777582
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed