CATALYTIC AMINOMERCURATION REACTIONS OF 3-ALKEN-1-YNES - AN IMPROVED METHOD FOR THE SYNTHESIS OF 2-AMINO-1,3-BUTADIENES AND 1-AZA-1,3-BUTADIENES

Catalytic aminomercuration of 3-alken-1-ynes leads to 1-aza-1,3-butadienes and 2-amino-1,3-butadienes. Under appropriate reaction conditions it is possible to prepare these compounds via mercuration of 3-alken-1-ynes in the presence of either aromatic or aliphatic primary and secondary amines. Depending on the substituents in the starting 3-alken-1-yne, the mercuration reaction may afford gamma-amino enamines instead of 2-amino-1,3-butadienes and 3-imino amines or 4-amino-1-aza-1,3-butadienes instead of 1-aza-1,3-butadienes.