Copper(I)-catalyzed intramolecular [2+2] cycloaddition of 1,6-enyne-derived ketenimine: An efficient construction of strained and bridged 7-substituted-3-heterobicyclo[3.1.1]heptan-6-one.

Total syntheses of (+)-alopecuridine, (+)-sieboldine A, and (-)-lycojapodine A.

Palladium-catalyzed cascade process to construct 1,2,5-trisubstituted pyrroles.