Phosphine catalysed (5 + 1) annulation of ynone/cinnamates with primary amines†
Jhi Ametovski,Laura Burchill,Debabrata Maiti,David W. Lupton,Joel F. Hooper
Chemical Communications Pub Date : 11/10/2017 00:00:00 , DOI:10.1039/C7CC08252E
Abstract

The (5 + 1) annulation of ynone/cinnamates and related substrates with protected primary amines gives rise to isoquinolones, pyrrolidinones and pyrrolopiperazines in good to excellent yields under phosphine catalysis. The reaction is viable with chiral phosphines, although the selectivity is poor.

Graphical abstract: Phosphine catalysed (5 + 1) annulation of ynone/cinnamates with primary amines