1-Bromo-2-Chloroethane → diphenylmethanone O-(2-chloroethyl)oxime

HRID 249284

反応式

HRID 249284 の反応式
[C:1](=[N:14][OH:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[CH2:17][CH2:18][Cl:19].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[Cl:19][CH2:18][CH2:17][O:15][N:14]=[C:1]([C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 78491-Bromo-2-ChloroethaneHCID 11324Benzophenone oximeHCID 11430Potassium Carbonate

生成物 1

HCID 10539239diphenylmethanone O-(2-chloroethyl)oxime収率 73.5%

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

実験手順

Benzophenone oxime (3.94 g, 20 mmol), 1-bromo-2-chloroethane (28.7 g, 200 mmol) and dried, powdered potassium carbonate (5.53 g, 80 mmol) in acetone (60 ml) were heated at reflux for 72 h. The reaction mixture was cooled and filtered and the filtrate was evaporated to an oily residue which was purified by "flash" chromatography (eluting with heptane/ethyl acetate 19/1) to provide diphenylmethanone O-(2-chloroethyl)oxime (3.82 g, 73%) as an oil, tlc rf 0.36 (SiO2, heptane/ethyl acetate 9/1).

後処理

  1. temperaturewere heated
  2. temperatureat reflux for 72 h
  3. temperatureThe reaction mixture was cooled
  4. filtrationfiltered
  5. customthe filtrate was evaporated to an oily residue which
  6. customwas purified by "flash" chromatography (eluting with heptane/ethyl acetate 19/1)

出典と根拠

ORDレコード
ord-2aadbcde41964545a79ea102d758d660
出典データセット
uspto-grants-1993_05
特許番号
US05214054

関連ノート

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