A cobalt-catalyzed highly (Z)-selective semihydrogenation of alkynes using molecular H2 was developed using commercially available and cheap cobalt precursors. A variety of (Z)-alkenes were obtained in moderate to excellent selectivities...
Gold(I)‐Catalyzed and PTSA‐Promoted Cycloisomerization of Ynamides to Access Pyrrole Substituted α,β‐Unsaturated Ketones**
作者:Shivani Choudhary、Gayyur、Nayan Ghosh
DOI:10.1002/ejoc.202201223
日期:2023.1.24
In this work, a new ynamide scaffold has been designed, synthesized and later applied in a gold-catalyzed cycloisomerization reaction to access pyrrole containing α,β-unsaturated ketones in low-to-moderate yields. Interestingly, the trans product has been obtained as a major isomer.