The Synthesis of α-Methylthiocyclododecanone Oxime Esters and Herbicide Activity
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Abstract
Sixteen new α-methylthiocyclododecanone oxime esters were synthesized by the reaction of acylation of α-methylthiocyclododecanone oxime as intermediate with acids. Their structures were confirmed by elemental analysis,1H NMR, 13C NMR and IR spectral data. The preliminary bioassay results showed that some of compounds have good herbicidal activities against Digitaria sanguinalis(Linn.)Scopoli and Abutilon theophrasti Medic. The inhibition rate of G7 against D. sanguinalis and A. theophrasti were 100% and 100% at 100 mg/L,while G7 against D. sanguinalis and A. theophrasti 84.3% and 89.0% at 1 mg/L. The IC50 values of G7 against D. sanguinalis and A. theophrasti are 0.208 and 0.024 mg/L,respectively.
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