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Acta Chimica Sinica ›› 1965, Vol. 31 ›› Issue (4): 333-335. Previous Articles     Next Articles

石斛碱与新石斛碱的构型

黃文魁   

  1. 兰州大学化学系
  • 投稿日期:1964-05-06 发布日期:2013-06-03

CONFIGURATIONS OF DENDROBINE AND NOBILINE

HWANG(HUANG) WEN-KUEI   

  1. Department of Chemistry, Lanchow University, Lanchow
  • Received:1964-05-06 Published:2013-06-03

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The NMR spectrum of oxodendrobinediol monoacetate (V),a degradation product of dendrobine (I),showed a quartet, corresponding to the C6 proton (4.87τ,J1=3.5 c.p, s.,J2=9.0 c.p.s.),among which the larger value of 9.0 c.p.s.should arise Erom the interaction between vicinal protons at C5 and C6, implying a dihedral angle of about 180° between them.