ChemInform Abstract: Post Ugi Gold(I)- and Platinum(II)-Catalyzed Alkyne Activation: Synthesis of Diversely Substituted Fused Azepinones and Pyridones.

The Ugi four-component reaction of 2-pyrrole aldehydes and analogous indole and benzothiophene aldehydes with primary amines, isonitriles, and alkynoic acids offers the expected adducts (V), (XI), and (XIV) which can be readily used for the synthesis of various fused pyridones and azepinones. [ABSTRACT FROM AUTHOR]