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Chemistry and Industry of Forest Products ›› 2020, Vol. 40 ›› Issue (1): 77-83.doi: 10.3969/j.issn.0253-2417.2020.01.011

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Synthesis and Antibacterial Activity of ω-formylcamphene Oxime and Its Hydrocarbyl Ethers Derivatives

Xuezhen FENG1,Zhuanquan XIAO2,Shangxing CHEN1,Guorong FAN1,Shengliang LIAO1,Zongde WANG1,*()   

  1. 1. College of Forestry, Jiangxi Agriculture University, East China Woody Fragrance and Flavor Engineering and Technology Research Center of State Forestry and Steppe Administration, Nanchang 330045, China
    2. College of Chemistry, Jiangxi Normal University, Nanchang 330027, China
  • Received:2019-07-07 Online:2020-02-28 Published:2020-03-06
  • Contact: Zongde WANG E-mail:zongdewang@163.com
  • Supported by:
    国家重点研发计划资助项目(2017YFD0600704);江西省杰出青年人才计划资助项目(20162BCB23030);国家自然科学基金资助项目(31660178)

Abstract:

ω-Formylcamphene oxime (2) was synthesized by the reaction of formylcamphene (1) with hydroxylamine hydrochloride.and then reacted with halohydrocarbon to synthesize five ω-formylcamphene oxime alkyl ether derivatives, such as ω-formylcamphene oxime ethyl ether (3a), ω-formylcamphene oxime propyl ether (3b), ω-formylcamphene oxime butyl ether (3c), ω-formylcamphene oxime n-pentyl ethers (3d), ω-formylcamphene oxime benzyl ethe (3e). Their structures were characterized by FI-IR, MS and NMR. The mycelium growth rate method was used to test the inhibitory effects of ω-formylcamphene oxime and its hydrocarbyl ethers on 12 kindsof plant pathogenic fungi. The results showed that the products had certain inhibitory effects on 12 kinds of plant pathogenic fungi, among which ω-formylcamphene oxime had the best activity and the best inhibitory against Colletotrichum gloeosporioides, EC50 was 39.25 mg/L. The EC50 values of Thanatephoruscu cumeris, Phomopsis sp., Fusarium avenaceum and Ceratosphaeria phyllostachydis sp. nov. were 40-50 mg/L. Under the concentration of 500 mg/L, ω-formylcamphene oxime completely inhibited 9 plant pathogenic fungi such as Thanatephorus cucumeris, and the inhibitory rates of ω-formylcamphene oxime against Sphaeropsi ssapinea and Fusicoccum aesuli were over 97%. When the medicament concentration of ω-formylcamphene oxime lowered, the inhibitory rates on most plant pathogenic fungi were still higher than that of chlorothalonil at 500 mg/L. Although the antibacteria activity of ω-formylcamphene oxime hydrocarbyl ethers was lower than that of ω-formylcamphene oxime, but the inhibitory rates of ω-formylcamphene oxime hydrocarbyl ethers against Ceratosphaeria phyllostachydis, Alternaria kikuchiana and Fusarium avenaceum were generally higher than that of chlorothalonil.

Key words: formylcamphene, ω-formylcamphene oxime, phase transfer catalysis, structural analysis, antibacterial activity

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