Abstract The tricyclic enones 4 and 5 have been synthesised involving acid catalysed intramolecular cyclisation of the diazo-methyl ketones 1 and 2 respectively. The present synthesis constitutes a new route to hydrophenanthrene ring system.
摘要
三环烯酮 4 和 5 的合成涉及重氮甲基酮 1 和 2 的酸催化分子内环化反应。本合成为氢
菲环体系开辟了一条新途径。