Acetylbenzoyl reacted with dimethylamine hydrochloride
and benzaldehyde in primary isoamyl alcohol under
reflux conditions to form 1,4-diphenvl-3-butene-1,2-dione,
compound I, which melted at 56-57°C.
Compound I formed a quinoxaline derivative, compound
II, which melted at 152.5-153°C.
Compound I was cleaved by hydrogen peroxide to form
cinnamic acid, compound III, which melted...