【摘要】 以环十二酮为原料,经α-甲硫基环十二酮肟合成了16个新的α-甲硫基环十二酮肟酯,其结构经元素分析1、H NMR1、3C NMR和IR的确证。初步生测结果表明,部分化合物对马唐D ig itariasanguinalis(L inn.)Scopoli和苘麻Abutilon theophrastiM edic具有较好的除草活性,其中G7在100mg/L时对马唐、苘麻的抑制率均为100%,在1mg/L时其抑制率分别为84.3%和89.0%,相同浓度下与对照药剂乙草胺的活性相当。精密毒力测定结果表明,G7对马唐和苘麻的IC50值分别为0.208和0.024mg/L。更多还原

【Abstract】 Sixteen new α-methylthiocyclododecanone oxime esters were synthesized by the reaction of acylation of α-methylthiocyclododecanone oxime as intermediate with acids.Their structures wereconfirmed by elemental analysis,¹H NMR- ¹3C NMR and IR spectral data.The preliminary bioassay results showee that some of compounds have good herbicidal activities against Digitaria sanguinalisLinn.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 are0.208 and 0.024 mg/L,respectively.更多还原