反応 #54241
ord-da22df0d8761434b9bbdfb30e3940d12
反応方程式
溶媒
反応条件
詳細条件
See reaction.notes.procedure_details.
後処理
- 1温度The reaction mixture was cooled
- 2その他The precipitated product was isolated by filtration
- 3その他recrystallized from ethanol
実験手順
A mixture of 2.7 g of cyclohexa(b)furan-4-one (Bull. Soc. Chim. Fr., 1967, 2796), 1.95 g of potassium cyanide and 9.6 g of powdered ammonium carbonate were heated with 40 ml of 95% aqueous ethanol at 110°-120° C. in a steel bomb for 16 hours. The reaction mixture was cooled, diluted with 200 ml of water, and acidified with 12 N hydrochloric acid. The precipitated product was isolated by filtration and recrystallized from ethanol to give 1.73 g of spiro[cyclohexa(b)furan-4,4'-imidazolidine]-2', 5'-dione, mp 245°-248° C.