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 substitutedaporphines 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 aporphinealkaloid (−)-lirinine.