• Title/Summary/Keyword: 2-hydroxy-5-nitrobenzoic acid

Search Result 1, Processing Time 0.014 seconds

Synthesis and biological activities of organophosphate and carbamate compounds derived from 2-hydroxy-5-nitrobenzoic acid and 3-hydroxy-4-nitrobenzoic acid (2-Hydroxy-5-nitrobenzoic acid와 3-hydroxy-4-nitrobenzoic acid의 유기인계와 카바메이트계 유도체 합성 및 생물활성)

  • Choi, Dal-Soon;Kyung, Suk-Hun;Kwon, Oh-Kyung;Seong, Ki-Seog
    • The Korean Journal of Pesticide Science
    • /
    • v.2 no.1
    • /
    • pp.12-17
    • /
    • 1998

  • Salicylic acid and 3-hydroxy benzoic acid are nitrated and esterified with some alcohols. Five phosphate and six carbamate compounds of alkyl-5-nitrosalicylate and alkyl-3-hydroxy-4-nitrobenzoate are synthesized by reacting alkyl-5-nitrosalicylate and alkyl-3-hydroxy-4-nitrobenzoate with diethyl-chlorophosphate and methyl isocyanate. As the bioassay results of synthesized compounds on five insects and six pathogens, the brown planthopper (BPH, Nilaparvata lugens) mortality of O-(2-carbomethoxy-4-nitrophenyl) O,O-diethylphosphate and O-(2-nitro-5-carbo methoxyphenyl) O,O-diethylphosphate was 96%, while four compounds including O-(2-carbo-(2-chloroethoxy)-4-nitrophenyl) O,O-diethylphosphate showed more than 95% of fungicidal activity on rice blast.

  • PDF