合成了一系列新的kresoxim-甲基衍生物,(吡啶基苯氧基亚甲基)苯基甲氧基亚氨基乙酸酯,并通过NMR和高分辨率质谱(HRMS)证实了它们的结构。尽管是从杀菌剂中提取的,但生物测定结果表明,几种新化合物具有良好的除草活性。在37.5 g ai / ha的条件下,化合物5c表现出对百草枯,,菜和梨形喜豆(Eclipta prostrata)的100%抑制作用,优于甲基磺草酮。化合物5e对阔叶杂草具有广泛的除草谱。目前的工作表明5c和5e可以作为潜在除草剂的新候选者。
Kresoxim-methyl Derivatives: Synthesis and Herbicidal Activities of (Pyridinylphenoxymethylene)phenyl Methoxyiminoacetates
作者:Yang-yang Cao、Da-jie Mao、Wei-wei Wang、Xiao-hua Du
DOI:10.1021/acs.jafc.7b02710
日期:2017.8.2
Although derived from a fungicide, the bioassays indicated that several new compounds had good herbicidalactivities. At 37.5 g a.i./ha, compound 5c showed 100% inhibition against Abutilon theophrasti, Amaranthus retroflexus, and Eclipta prostrata, which was better than mesotrione. Compound 5e had a broad herbicidal spectrum against broadleaf weeds. The present work indicates that 5c and 5e may serve as
合成了一系列新的kresoxim-甲基衍生物,(吡啶基苯氧基亚甲基)苯基甲氧基亚氨基乙酸酯,并通过NMR和高分辨率质谱(HRMS)证实了它们的结构。尽管是从杀菌剂中提取的,但生物测定结果表明,几种新化合物具有良好的除草活性。在37.5 g ai / ha的条件下,化合物5c表现出对百草枯,,菜和梨形喜豆(Eclipta prostrata)的100%抑制作用,优于甲基磺草酮。化合物5e对阔叶杂草具有广泛的除草谱。目前的工作表明5c和5e可以作为潜在除草剂的新候选者。
Synthesis and herbicidal activities of 2‐phenylpyridine compounds containing alkenyl moieties
作者:Zengfei Cai、Wenliang Zhang、Yangyang Cao、Xiaohua Du
DOI:10.1002/jhet.4464
日期:2022.7
In order to find new heterocyclic compounds with high herbicidalactivity, a series of novel 2-phenylpyridine derivatives were designed and synthesized by incorporating alkenyl into 2-phenylpyridine moieties. The structures of the title compounds were characterized by 1H NMR, 13C NMR, 19F NMR, and HRMS. The herbicidalactivities assay demonstrated that most of the title compounds showed 100% inhibition
为了寻找具有高除草活性的新型杂环化合物,通过将烯基引入2-苯基吡啶部分,设计并合成了一系列新型2-苯基吡啶衍生物。标题化合物的结构通过1 H NMR、13 C NMR、19 F NMR和HRMS表征。除草活性测定表明,大多数标题化合物在 150 g ai/ha 下对Abutilon theophrasti和Amaranthus retroflexus表现出 100% 的抑制作用。在 37.5 g ai/ha 时,化合物6f和6g对Abutilon theophrasti、Amaranthus retroflexus表现出相当的抑制作用 (>80%)和旱莲草,与 150 g ai/ha 的阳性对照甲基磺草酮相比。
Synthesis of Novel α-Trifluoroanisole Derivatives Containing Phenylpyridine Moieties with Herbicidal Activity
作者:Zengfei Cai、Yangyang Cao、Xiaohua Du
DOI:10.3390/ijms231911083
日期:——
To find novel herbicidal compounds with high activity and broad spectrum, a series of phenylpyridine moiety-containing α-trifluoroanisole derivatives were designed, synthesized, and identified via nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). Greenhouse-based herbicidalactivity assays revealed that compound 7a exhibited > 80% inhibitory activity against Abutilon theophrasti
为了寻找具有高活性和广谱性的新型除草化合物,设计、合成了一系列含有苯基吡啶部分的α-三氟苯甲醚衍生物,并通过核磁共振(NMR)和高分辨率质谱(HRMS)进行了鉴定。温室除草活性测定表明,化合物7a在37.5 g ai/hm 2剂量下对苘麻、反枝苋、旱莲草、马唐、狗尾草表现出>80%的抑制活性,优于氟磺胺草醚。化合物7a在该温室环境中进一步对苋麻和反枝苋表现出优异的除草活性,中位有效剂量(ED 50 )值分别为13.32和5.48 g ai/hm 2 ,两者均略优于氟磺胺草醚(ED 50 = 36.39, 10.09 g ai/hm 2 )。当用于抑制烟草原卟啉原氧化酶( Nt PPO)时,化合物7a和氟磺胺草醚各自的半最大抑制浓度(IC 50 )为9.4和110.5 nM。化合物7a的对接结果表明,3-氯-5-三氟甲基吡啶和三氟甲氧基的引入有利于这些化合物与Nt PPO之间形成稳定的相互作用。
Synthesis of Novel Pyrazole Derivatives Containing Phenylpyridine Moieties with Herbicidal Activity
作者:Zengfei Cai、Wenliang Zhang、Zhongjie Yan、Xiaohua Du
DOI:10.3390/molecules27196274
日期:——
favorable herbicidalactivity, a range of phenylpyridine moiety-containing pyrazole derivatives were designed, synthesized, and identified via NMR and HRMS. Their herbicidalactivities against six species of weeds were evaluated in a greenhouse via both pre- and post-emergence treatments at 150 g a.i./hm2. The bioassay revealed that a few compounds exhibited moderate herbicidalactivities against Digitaria