化学学报 ›› 1958, Vol. 24 ›› Issue (1): 53-62,67,68. 上一篇    下一篇

论文

Ⅱ. 2, 4, 6-三羟基-5-羰基-5, 12-二氢并四苯的合成

黄耀曾, 盛怀禹, 戴立信, 涂通源   

  1. 中国科学院有机化学研究所
  • 投稿日期:1957-06-28 发布日期:2013-06-03

Ⅱ. SYNTHESIS OF 2, 4, 6-TRIHYDROXY-5-KETO-5, 12-DIHYDRONAPHTHACENE

HUANG YAO-TSENG, HSU YUEN-YAO   

  1. Institute of Organic Chemistry, Academia Sinica
  • Received:1957-06-28 Published:2013-06-03

我们选择2, 4, 6-三经基5-羰基-5, 12-二氢并四苯(Ⅻ)作为合成脱二甲氨地霉红(Ⅰ)的模型.按照两条可能的合成路线, 一条是Ⅱ与Ⅲ在硼酸作用下的缩合, 另一条是Ⅴ与Ⅵ的Friedel-Crafts酰化反应, 获得同一缩合产物Ⅳ.在Friedel-Crafts反应中除Ⅳ以外还同时得到了Ⅳ的乙酯(Ⅶ)及环化产物(Ⅷ).将Ⅳ用浓硫酸环化再继之以氢碘酸的作用, 得到Ⅻ.Ⅻ也可自Ⅳ进行环化, 接著脱甲基化, 还原及最后脱甲基化反应制得.曾讨论Ⅻ的结构, 并从红外光谱得到证明.

2, 4, 6-Trihydroxy-5-keto-5, 12-dihydronaphthacene(ⅩⅡ) is choosen as a model for the synthesis of desdimethylaminoterrarubein(Ⅰ), an important degradation product of the antibiotic terramycin.The synthesis of(ⅩⅡ) is approached by two different routes.One is the Friedel-Crafts acylation of(Ⅴ) with(Ⅵ) and the other is the boric acid condensation of(Ⅱ) and(Ⅲ).