Synthesis and reactions of 2‐[α‐(3,4‐disubstituted phenacyl)‐ p ‐substituted styryl]‐4 H ‐3,1‐benzoxazin‐4‐ones

Conversion of β‐aroyl propionic acids into furanone derivatives (2) and benzoxazinone derivatives (3) for the study of the reactivity of these nucleus towards different nucleophilic and electrophilic reagents.