57548-58-0Relevant articles and documents
Continuous preparation method and preparation system of 2-methyl-4-chlorophenoxyacetic acid
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Page/Page column 0021; 0024; 0035-0061, (2022/01/10)
The present invention belongs to the technical field of 2-methyl-4-chlorophenoxyacetic acid, specifically relates to a continuous preparation method and preparation system of 2-methyl-4-chlorophenoxyacetic acid. The continuous preparation method of 2-methyl-4-chlorophenoxyacetic acid comprising: the o-cresol and the alkali solution into a salt reaction, to obtain a phenol salt solution; after the chloroacetic acid is added to the phenol salt solution for condensation reaction, the reaction solution is evaporated to obtain o-toluoxyacetate; organic solvent and acid are added to the o-toluoxyacetate, after acidification reaction, the reaction mixture is separated from the intermediate solution; chlorine is introduced into the intermediate solution, and after the chlorination reaction, the product solution is separated After crystal separation and drying of the product solution, 2-methyl-4-chlorophenoxyacetic acid was prepared. By configuring an automated control system through continuous production, human resources can be greatly reduced.
Finding new elicitors that induce resistance in rice to the white-backed planthopper Sogatella furcifera
He, Xingrui,Yu, Zhaonan,Jiang, Shaojie,Zhang, Peizhi,Shang, Zhicai,Lou, Yonggen,Wu, Jun
supporting information, p. 5601 - 5603 (2015/11/17)
Herein we report a new way to identify chemical elicitors that induce resistance in rice to herbivores. Using this method, by quantifying the induction of chemicals for GUS activity in a specific screening system that we established previously, 5 candidate elicitors were selected from the 29 designed and synthesized phenoxyalkanoic acid derivatives. Bioassays confirmed that these candidate elicitors could induce plant defense and then repel feeding of white-backed planthopper Sogatella furcifera.