Tandem synthesis of 2,3-dihydro-4-iminoquinolines via three-component alkyne-imine metathesis.

In the absence of any catalysts, ortho-alkynylanilines react with aldehydes and amines in HFIP to form trans-2,3-disubstituted 2,3-dihydro-4-iminoquinolines in a complete trans-selective manner via the three-component alkyne-imine metathesis.

Synthesis of pyrroles by gold(I)-catalyzed amino-claisen rearrangement of N-propargyl enaminone derivatives.

The cationic N-heterocyclic carbene-gold(I) complex catalyzes the formation of tri- and tetrasubstituted pyrroles via the amino-Claisen rearrangement of N-propargyl beta-enaminone derivatives and the cyclization of alpha-allenyl beta-enaminone intermediates.