Michael addition of 3-bromoinden-1-one: an expedient synthesis of 5-bromo-3-trifluoroacetamidoindan-1-one

The Michael addition of 5-bromo-inden-1-one with ammonia followed by acylation with trifluoroacetic anhydride provides 5-bromo-3-trifluoroacetamidoindan-1-one in 51% yield in one-pot.