A new benzannulation reaction and its application in the multiple parallel synthesis of arylnaphthalene lignans
作者:Stuart R Flanagan、David C Harrowven、Mark Bradley
DOI:10.1016/s0040-4020(02)00616-6
日期:2002.7
described. The method is high yielding and provides a rapid entry to arylnaphthalenes. The lignan natural products justicidin B 1, retrojusticidin B 2, taiwanin C 3, justicidin E 4, chinensin 5 and retrochinensin 6 have all been synthesised in good overall yield using this protocol, demonstrating its potential in multiple parallel synthesis. The selective oxidation of diols 34–36 to the corresponding retrolactones
描述了一种基于顺序霍纳-埃蒙斯和克莱森缩合反应的新型芳香环化反应。该方法产率高并且提供了芳基萘的快速进入方法。木质素天然产物正义肽B 1,逆转录酶B 2,台黄素C 3,正义肽E 4,chinensin 5和Retrochinensin 6均已使用该方案以良好的总收率合成,证明了其在多个平行合成中的潜力。同样值得注意的是,用锰酸钡(VI)将二醇34 – 36选择性氧化为相应的内酯。