Heterocycles. VII. Reaction of 12-Hydroxy-5-oxa-6-oxo-5, 6-dihydrochrysene with Methylamine

Abstract

The lactone (5) reacts with methylamine to afford the methylaminophthalide (6). On the basis of the reactions of 6 and related compounds, the spiro lactam (14) is suggested to be an intermediate in the formation of 6 from 5.