Monoligated Pd(0)-catalyzed intramolecular ortho- and para-arylation of phenols for the synthesis of aporphine alkaloids. Synthesis of (−)-lirinine
作者:Malik Hellal、Shambhavi Singh、Gregory D. Cuny
DOI:10.1016/j.tet.2011.12.022
日期:2012.2
palladium(0)-mediated ortho-arylation of phenols applied to the synthesis of various substituted aporphines is reported. Most significantly, the efficiency of the transformation was enhanced by the use of monoligated Pd(0) complexes. This methodology was extended to para-arylation of phenols and employed in the synthesis of the aporphine alkaloid (−)-lirinine.
报道了分子内钯(0)介导的苯酚的邻位芳基化,其被用于合成各种取代的磷鎓。最重要的是,通过使用单连接的Pd(0)配合物可以提高转化效率。该方法扩展到酚的对芳基化,并用于合成阿波啡碱(-)-亚麻氨酸。