Synthesis and Herbicidal Activity of N-Alkyl-N-(substituted benzyl)-4-halo-2-alkenamides
Kenji MATSUNARI, Hidetoshi SUGIYAMA, Hideo SADOHARA and Kenji MOTOJIMA
J. Pestic. Sci.
24, 1-6 (1999)
This paper reports the synthesis of novel N-alkyl-N-(substituted benzyl)-4-halo-2-alkenamides and their herbicidal activity against Echinochloa oryzicola. Their herbicidal activity was observed to be light-dependent. The study on the structure-activity relationships revealed that 4-chloro-2-pentenoyl is the best as the acyl skeleton, and the combinations of either isobutyl or isopentyl and either 4-cyano- or 4-chlorobenzyl substituents on the amide nitrogen atom are the most favorable to the activity.
