Phosgene → HCID 12861465、化合物
反応式
[CH3:1][C:2]([C:4]1[CH:9]=[C:8]([Cl:10])[C:7]([NH2:11])=[C:6]([Cl:12])[CH:5]=1)=[O:3].[C:13](Cl)(Cl)=[O:14]>C1(C)C=CC=CC=1>[C:2]([C:4]1[CH:5]=[C:6]([Cl:12])[C:7]([N:11]=[C:13]=[O:14])=[C:8]([Cl:10])[CH:9]=1)(=[O:3])[CH3:1]参加物
4
実験手順
A mixture of 5 g. of 4-amino-3,5-dichloroacetophenone, 5 ml. of phosgene, and 30 ml. of toluene was heated to 150° C. for 24 hours in a sealed tube. The reaction mixture was cooled and concentrated under reduced pressure to provide crude 4-acetyl-2,6-dichlorophenyl isocyanate. The crude product was dissolved in 100 ml. of toluene and then dry dimethylamine was passed through the solution for 1 hour at room temperature. The reaction mixture was concentrated under reduced pressure and the residue formed was recrystallized from a mixture of benzene and n-hexane to provide 2.58 g. of 3,5-dichloro-4-N,N-dimethylcarbamoylaminoacetophenone having a melting point of 138°-140° C.
後処理
- additionA mixture of 5 g
- temperatureThe reaction mixture was cooled
- concentrationconcentrated under reduced pressure
出典と根拠
- ORDレコード
- ord-67621b1dc4bb40fa94a9d5e6cd99ac45
- 出典データセット
- uspto-grants-1977_12
- 特許番号
- US04063025
反応ノート
読み込み中…