Aniline → N-Phenyl-N'-(trifluoromethyl)urea
反応式
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:8][C:9]([N:12]=[C:13]=[O:14])([F:11])[F:10]>C1(C)C=CC=CC=1>[C:2]1([NH:1][C:13]([NH:12][C:9]([F:11])([F:10])[F:8])=[O:14])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1参加物
4
実験手順
A solution of aniline (93.12 grams; 1.0 mol) in toluene (200 ml) is charged into a glass reaction flask equipped with a mechanical stirrer, thermometer and gas inlet tube. Trifluoromethyl isocyanate (111 grams; 1.0 mol) is slowly bubbled into the reaction medium with vigorous stirring. The temperature of the reaction mixture is kept below about 50° C. After the addition is completed the reaction mixture is stirred for an additional period of about 1 hour. After this time the toluene is stripped from the reaction mixture under reduced pressure. The residue is then recrystallized to yield N-phenyl-N'-trifluoromethyl urea.
後処理
- customequipped with a mechanical stirrer
- customis kept below about 50° C
- additionAfter the addition
- customThe residue is then recrystallized
出典と根拠
- ORDレコード
- ord-00be095e60074bec9eb2b08e9e7517e9
- 出典データセット
- uspto-grants-1976_09
- 特許番号
- US03982019
反応ノート
読み込み中…