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Chemistry and Industry of Forest Products ›› 2024, Vol. 44 ›› Issue (1): 105-110.doi: 10.3969/j.issn.0253-2417.2024.01.014

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Synthesis and Antifungal Activity of Endo-isocamphanyl-formaldehyole Thiosemicarbazides

Qingying DING1, Jiayu CHANG1, Zhuanquan XIAO2, Jia HU1, Zongde WANG1, Shangxing CHEN1,*()   

  1. 1. College of Forestry, Jiangxi Agricultural University; East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration; Camphor Engineering Research Center of NFGA/Jiangxi Province, Nanchang 330045, China
    2. College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
  • Received:2022-12-29 Online:2024-02-28 Published:2024-02-23
  • Contact: Shangxing CHEN E-mail:csxing@126.com

Abstract:

5 endo-isocamphanyl-formaldehyole thiosemicarbazide compounds(3a-3e) were synthesized by condensation reactions of camphene derivatives endo-isocamphanyl-formaldehyole with thiosemicarbazide derivatives. Their structures were characterized by IR, MS, 1H NMR and 13C NMR. The mycelial growth rate method was used to study the inhibition effects of the related compounds on the growth of 8 plant pathogenic fungi including Rhizoctonia solani. The results showed that, among 5 compounds, the inhibition rate of endo-isocamphanyl-formaldehyole thiosemicarbazide(3a) was the highest against 8 plant pathogenic fungi. At the mass concentration of 50 mg/L, the inhibition rates of 3a against Colletotrichum gloeosporioides and Colletotrichum acutatum were 91.9% and 97.2%, respectively. The inhibition rates of 3a against Colletotrichum fructicola and Coriolus versicolor were both 100%. The inhibition rates of 3a against Rhizoctonia solani, Sphaeropsis sapinea and Fusariumoxyporum f. sp. niveum were 80.7%, 79.8% and 79.5%, respectively, which were better than that of the positive control sample of Chlorothalonil.

Key words: endo-isocamphanyl-formaldehyole, thiosemicarbazide, condensation reaction, structural analysis, antifungal activity

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