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›› 2002, Vol. 22 ›› Issue (2): 86-88.

• 研究快报 • Previous Articles     Next Articles

STUDIES ON SYNTHESIS OF NOPYL PROPANOATE AND ITS 13C CHEMICAL SHIFT CHARACTERISTICS

WANG Zong-de1, XIAO Zhuan-quan2, AN Xin-nan3   

  1. 1. College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;2. College of Chemistry and Biological Science, Jiangxi Normal University, Nanchang 330027, China;3. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
  • Received:2001-08-07 Revised:1900-01-01 Online:2002-06-30 Published:2002-06-30

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Abstract: Nopyl propanoate was synthesized by the reaction of nopol with propionic anhydride,and its structure was identified by MS,IR, 1H NMR and 13C NMR.Conformational analysis was performed by comparing 13C chemical shift of C-6,C-7 with those of α-pinene.Result suggests that C-1-C-2-C-3-C-4-C-5 fragment is planar,and the 6,6-dimethylbicyclo[3.1.1]hept-2-ene fragment is Y-shaped.Nopyl propanoate can be assigned as derivative of apopinene with a substituent at C-2,and the substituent has effect on chemical shift mainly at C-2,C-1 and C-3,while interaction between the substituent and other carbons is insignificant.

Key words: nopyl propanoate, 13C chemical shift, conformation

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