除草活性を有する N-benzyl-2-bromo-3, 3-dimethylbutanamides の定量的構造活性相関

桐野 修, 古沢 久仁彦, 高山 千代蔵, 松本 啓志, 嶺 昭彦

doi:10.1584/jpestics.8.309

除草活性を有する N-benzyl-2-bromo-3, 3-dimethylbutanamides の定量的構造活性相関

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

桐野修

Research Institute, Pesticides Division, Sumitomo Chemical Co., Ltd.
古沢久仁彦

Research Institute, Pesticides Division, Sumitomo Chemical Co., Ltd.
高山千代蔵

Research Institute, Pesticides Division, Sumitomo Chemical Co., Ltd.
松本啓志

Research Institute, Pesticides Division, Sumitomo Chemical Co., Ltd.
嶺昭彦

Research Institute, Pesticides Division, Sumitomo Chemical Co., Ltd.

書誌事項

タイトル別名

Quantitative Structure-Activity Relationships of the Herbicidal N-Benzyl-2-bromo-3, 3-dimethylbutanamides
除草活性を有するN-benzyl-2-bromo-3,3-dimethylbutananamidesの定量的構造活性相関〔N-Benzylbutanamidesの除草活性-3-〕〔英文〕
ジョソウカッセイオユウスル N benzyl 2 bromo 3 3 d
Herbicidal Activity of N-Benzylbutanamides (Part III)

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抄録

The growth inhibiting activity of 27 derivatives of N-benzyl-2-bromo-3, 3-dimethylbutanamide having various substituents at the α-position and the benzene ring of the N-benzyl group against bulrush, Scirpus juncoides, was determined in the vial test. The structure-activity relationships were analyzed quantitatively by physicochemical substituent parameters and multiple regression analysis. The variation in the activity of N-(α-substituted benzyl) derivatives was shown to be related parabolically with variation in the steric dimension of the substituents. The greater the hydrophobicity of substituents is, the greater the activity is. The variation in the steric dimension of the benzene ring substituents was responsible for the activity of N-(1-methyl-1-substituted phenylethyl) derivatives.