在这里,我们报道了由对甲苯磺酸促进苯并稠合的O杂环的首次发散合成,该反应促进了级联反应,涉及炔烃水合,双环化,环收缩和炔醇裂解C-O键。通过获得熔融的苯并[ b ]氧杂环庚烷中间体的X射线结构来验证反应机理。而且,一些获得的衍生物可以转化为2,3-二取代的萘醌,作为天然产物和生物活性分子中的重要结构基序。
The development of an organotransition metal synthesis of quinones
作者:Lenny S. Liebeskind、Sherrol L. Baysdon、Michael S. South、Suresh Iyer、James P. Leeds
DOI:10.1016/s0040-4020(01)91423-1
日期:1985.1
A new and very general synthesis of quinones is described from conception to the current state of maturity. The chemistry relies on a convergent joining of a transition metalcomplex and an alkyne to provide benzoquinones (from maleoylmetal complexes) and naphthoquinones (from phthaloylmetal complexes). Significant aspects of this chemistry are its generality (terminal, internal, electron rich, and