Hyperconjugation not steric repulsion leads to the staggered s ...
而不是老的教科
提到的位阻
。
间（排列）的（间）Hyperconjugation not steric repulsion leads to the staggered s ...
而不是老的教科提到的位阻。
As steric hindrance of the aryl amine decreased and nucleophilicity increased, occurrence of the transfor-mation reaction increased and herbicidal activity of the product decreased.
芳胺间位阻越小,
越强,副反越容易发生,产物除草活越低。
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