Water → HCID 298384, compound

Participants

Reaction Steps

A solution of hydantoin (10 g), fused sodium acetate (20 g), and freshly distilled furfural (12 g) in acetic acid (40 ml) was heated under reflux for 11/4 hours. The dark solution was poured into cold water (400 ml) to precipitate the dark green/yellow product, which was washed with water until neutral and then with cold ethanol to give 14 g (80% theoretical yield) of 5-furfurylidenehydantoin m.p. 232°-5° (decomp.) (H. L. Wheeler and C. Hoffman, Amer. Chem. J., 1911, 45, 368, quote m.p. 232°.) The material was used without further purification.

Provenance & Evidence