论文部分内容阅读
1.西貝素用鋅粉蒸餾及硒脫氫,產物中的鹼性部分得2,5-二甲基吡啶(Ⅱ),中性部分得碳氫化合物C_(12)H_(14)(III)及C_(20)H_(18)或C_(22)H_(20)二種。與由貝母素甲用同法處理,所得結果相同。其中C_(18)H_(14)(III)已由合成證明為8-甲基-1,2-苯弗。此種碳氫化合物,在天然產物降解中,尚屬首次得到。 2.西貝素與貝母素乙均屬於變形(石享)類植物鹼。它們的實驗式及功能團是相同的。它們的紫外吸收光譜,幾乎完全符合,其結構式可能稍有差別,或僅是構型的不同。
1. The distillation and dehydrogenation of selenium using zinc powder, the basic part of the product was 2,5-dimethyl pyridine (II), the neutral part of the hydrocarbon C_ (12) H_ (14) (III) And C_ (20) H_ (18) or C_ (22) H_ (20) two kinds. The same results as those obtained from the same method used for the treatment of Fritillaria prime. Among them, C_(18)H_(14)(III) has been proved to be 8-methyl-1,2-benzpherene by synthesis. This kind of hydrocarbon is first obtained in the degradation of natural products. 2. Xibeisu and Fritillaria B belong to the deformed (Shixiang) plant alkaloids. Their experimental formulae and functional groups are the same. Their UV absorption spectra are almost identical, their structural formula may be slightly different, or only the configuration is different.