Efficient and practical synthesis of enantioenriched 2,3-dihydropyrroles through gold-catalyzed anti-Markovnikov hydroamination of chiral homopropargyl sulfonamides
作者:Yong-Fei Yu、Chao Shu、Bo Zhou、Jian-Qiao Li、Jin-Mei Zhou、Long-Wu Ye
DOI:10.1039/c4cc09245g
日期:——
A direct gold-catalyzed 5-endo-dig cycloisomerization of chiralhomopropargylsulfonamides has been developed. A range of enantioenriched 2,3-dihydropyrroles are readily accessed by utilizing this approach. Importantly, this gold-catalyzedcycloisomerization reaction proceeds through an anti-Markovnikov addition by using a catalytic base as the additive, which completely suppresses the undesired dimerization