Heteroatom-directed Wacker oxidations. A protection-free synthesis of (−)-heliophenanthrone
作者:Parag Mukherjee、Tarun K. Sarkar
DOI:10.1039/c2ob07095b
日期:——
of (−)-heliophenanthrone has been achieved without any protection–deprotection protocol at an overall yield of 28%. Key features of this synthesis comprise a heteroatom-directed Wacker oxidation of an internal cyclic olefin in addition to asymmetric Brown allylation and ring closing metathesis (RCM).
第一对映体的六步合成 (-)-螺菲蒽酮无需任何保护-脱保护方案即可实现,总收率为28%。该合成的关键特征包括除不对称布朗烯丙基化和闭环复分解(RCM)之外,内部环烯烃的杂原子定向瓦克氧化。