N,N'-Dimethylurea → 4,5-Dihydroxy-1,3-dimethylimidazolidin-2-one
反応式
[C:1]([NH:5][CH3:6])([NH:3][CH3:4])=[O:2].[CH:7]([CH:9]=[O:10])=[O:8].[OH-].[Na+]>>[OH:8][CH:7]1[CH:9]([OH:10])[N:5]([CH3:6])[C:1](=[O:2])[N:3]1[CH3:4]参加物
4
実験手順
Dimethylurea (2-moles, 176 parts) and glyoxal (2 moles, 290 parts of 40% aqueous solution) are mixed and the pH adjusted to 7 with sodium hydroxide. The reaction mixture is stirred at room temperature for several hours and the resulting white solid is filtered, washed with methanol and dried. White crystals, melting point 140° C. are obtained in fine yield.
後処理
- filtrationthe resulting white solid is filtered
- washwashed with methanol
- customdried
- customWhite crystals, melting point 140° C. are obtained in fine yield
出典と根拠
- ORDレコード
- ord-7c6b846b0e2947f8abeac91dac2dca04
- 出典データセット
- uspto-grants-1981_08
- 特許番号
- US04284536
反応ノート
読み込み中…