Design, Synthesis, Acaricidal Activities, and Structure–Activity Relationship Studies of Novel Oxazolines Containing Sulfonate Moieties
摘要:
With the ultimate goal of addressing pest-related constraints on global agricultural production, we used combination principles to design and synthesize 2,4-diphenyl-1,3-oxazolines containing a sulfonate moiety at the para-position of the 4-phenyl group. The target compounds, which have strong affinity for lipids and can be expected to traverse cell membranes, were characterized by H-1 and C-13 NMR spectroscopy and high-resolution mass spectrometry. Their activities against the larvae and eggs of carmine spider mites (Tetranychus cinnabarinus) were determined by a leaf-dipping method and compared with the activity of the commercial acaricide etoxazole. Most of the test compounds displayed good ovicidal and larvicidal activities. In particular, a tert-butylphenyl-substituent compound possessed better larvicidal activity (LC50 = 0.022 +/- 0.009 mg/L) and ovicidal activity (0.044 +/- 0.020 mg/L) than etoxazole (0.091 +/- 0.051 and 0.095 +/- 0.059 mg/L, respectively). Given its outstanding bioactivities, this compound deserves further attention as a pesticide candidate.
Described herein are arthropodicidal compounds, compositions and use of compounds of Formula (I) wherein the substituents are defined in the disclosure ##STR1##
[EN] OXAZOLINE COMPOUND, SYNTHESIS METHOD THEREFOR AND APPLICATION THEREOF<br/>[FR] COMPOSÉ OXAZOLINE, SON PROCÉDÉ DE SYNTHÈSE ET APPLICATION ASSOCIÉE<br/>[ZH] 噁唑啉类化合物及其合成方法和应用