3-プロパルギルチオ-4-置換フェニル-4<i>H</i>-1,2,4-トリアゾール類の合成とその白化活性

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献1件 参考文献10件
  • 竹原 宏二
    Laboratory of Pesticide Chemistry, Department of Agricultural Chemistry, Kyushu University
  • 山田 直隆
    Laboratory of Pesticide Chemistry, Department of Agricultural Chemistry, Kyushu University
  • 羽明 英敏
    Laboratory of Pesticide Chemistry, Department of Agricultural Chemistry, Kyushu University
  • 桑野 栄一
    Laboratory of Pesticide Chemistry, Department of Agricultural Chemistry, Kyushu University
  • 谷口 栄二
    Laboratory of Pesticide Chemistry, Department of Agricultural Chemistry, Kyushu University

書誌事項

タイトル別名
  • Synthesis and Bleaching Activity of 3-Propargylthio-4-(substituted phenyl)-4<i>H</i>-1, 2, 4-triazoles
  • 3-プロパルギルチオー4-置換フェニルー4H-1,2,4-トリアゾール類の合成とその白化活性〔英文〕
  • 3 プロパルギルチオ 4 チカン フェニル 4H 1 2 4 トリアゾールルイ

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抄録

A number of 3-alkylthio-4-aryl-4H-1, 2, 4-triazoles were synthesized and evaluated for their bleaching activity by using a lettuce seedling test. In a series of 4-phenyl-4H-1, 2, 4-triazoles, 3-propylthio and 3-propargylthio analogs caused complete bleaching symptoms at 50ppm, while the activity fell off with increasing or decreasing size of the alkylthio group at the 3-position of the triazole ring. The introduction of a chloro, trifluoromethyl, methyl or ethoxy substituent at the meta- or para-position on the benzene ring increased the activity in comparison with that of the phenyl analog. 4-(3-Chlorophenyl and 4-chlorophenyl)-3-propargylthio-4H-1, 2, 4-triazole (16 and 17) markedly reduced β-carotene content as well as chlorophyll in plants. Inhibition of β-carotene formation was accompanied by an accumulation of large amounts of phytoene, suggesting that these 1, 2, 4-triazoles inhibit the desaturation of phytoene.

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