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Chemistry and Industry of Forest Products ›› 2018, Vol. 38 ›› Issue (5): 23-29.doi: 10.3969/j.issn.0253-2417.2018.05.004

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Synthesis of Sodium Maleopimaric Acid Long Chain Alkyl (Alkylene) Amines and Their Antifeedant Activity Against Agrotis ypsilon

ZHAI Zhaolan1, YAN Xinyan1, XU Ji1, SONG Zhanqian1, SHANG Shibin1,2, RAO Xiaoping1,2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2018-04-25 Online:2018-10-25 Published:2018-11-06

Abstract: With maleopimaric acid, dodecylamine, tetradecylamine,hexadecylamineand octadecylamine as the main raw materials, disodium maleopimaric acid amide(Cn-MPA-2Na, n=12, 14, 16, 18) were synthesized through amidation reaction and acid-base neutralization, and their structures were characterized by IR and 1H NMR. The antifeedant activities of Cn-MPA-2Na (n=12, 14, 16, 18)and sodium maleopimaric acid long chainalkylene amines (Cn-MPA-Na, n=12, 14, 16) reported in reference against Agrotis ypsilon were investigated using the method of leaf disc. The results showed that both Cn-MPA-2Na (n=12, 14, 16, 18) and Cn-MPA-Na (n=12, 14, 16) show good water solubility at room temperature, and the solubility of Cn-MPA-2Na was above 300 g/L. Both the length of alkane and the number of sodium carboxylate in soluble sodium maleopimaric acid long chain alkyl (alkylene) amines showed little influences on its antifeedant activities against A. ypsilion. And C12-MPA-2Na, C18-MPA-2Na and C14-MPA-Na showed strong antifeedant activities against A. ypsilon. The 50% antifeedant concentrations(AFC50) for C12-MPA-2Na, C18-MPA-2Na and C14-MPA-Na were 0.51, 0.54 and 0.77 g/L, respectively.

Key words: maleopimaric acid, synthesis, Agrotis ypsilon, water solubility, antifeedant activities

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