849907-83-1Relevant articles and documents
Synthesis of diindeno-fused 4H-cyclopenta[def]phenanthren-4-ones and related compounds via benzannulated enediynyl propargylic alcohols
Han, Xiaoqing,Zhang, Yanzhong,Wang, Kung K.
, p. 2406 - 2408 (2007/10/03)
(Chemical Equation Presented) Treatment of propargylic diols 5-7 with thionyl chloride promoted a cascade sequence of reactions leading to dichlorides 10-12 and, after reduction with tributyltin hydride, the diindeno-fused 4H-cyclopenta[def]phenanthrenes