Merging Gold and Organocatalysis: A Facile Asymmetric Synthesis of Annulated Pyrroles
作者:Daniel Hack、Charles C. J. Loh、Jan M. Hartmann、Gerhard Raabe、Dieter Enders
DOI:10.1002/chem.201400407
日期:2014.4.1
cinchona‐alkaloid‐derived primary amine and AuI–phosphine catalysts allowed the selective CH functionalization of two adjacent carbon atoms of pyrroles under mild reaction conditions. This sequential dual activation provides seven‐membered‐ring‐annulatedpyrrole derivatives in excellent yields and enantioselectivities.
金鸡纳生物碱衍生的伯胺和 Au I-膦催化剂的组合允许在温和的反应条件下选择性地对吡咯的两个相邻碳原子进行C → H 官能化。这种连续的双重活化以优异的产率和对映选择性提供了七元环环化吡咯衍生物。