A novel series of naphtho‐ferrocene derivatives were synthesized in high yields by an efficient gold‐catalyzed intramolecular 6‐endo‐dig cyclization strategy. The salient features of this reaction include easy operation, broad substrate scope, high yields, mild conditions and it works well in wet solvent under air at room temperature.
Mild access to planar-chiral ortho-condensed aromatic ferrocenes via gold(<scp>i</scp>)-catalyzed cycloisomerization of ortho-alkynylaryl ferrocenes
作者:Antonio Urbano、Gloria Hernández-Torres、Ana M. del Hoyo、Alicia Martínez-Carrión、M. Carmen Carreño
DOI:10.1039/c6cc02624a
日期:——
An efficient approach to (Rp) planar-chiral tri- and tetracyclic ortho-condensed aromatic ferrocenes was developed through the enantioselective cationic Au(I)-catalyzed cycloisomerization, in the presence of bidentate phosphine ligand (R)-DTBM-Segphos, from readily...