Diethyl Malonate → 2-(2,2,2-Trifluoro-1-phenylimino-ethyl)-malonic acid diethyl ester

HRID 1727466ノート

反応式

HRID 1727466 の反応式
[H-].[Na+].[C:3]([O:11][CH2:12][CH3:13])(=[O:10])[CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6].[F:14][C:15]([F:26])([F:25])[C:16](Cl)=[N:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>C1COCC1.C(Cl)Cl>[CH2:12]([O:11][C:3](=[O:10])[CH:4]([C:16](=[N:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[C:15]([F:14])([F:25])[F:26])[C:5]([O:7][CH2:8][CH3:9])=[O:6])[CH3:13]

参加物

6

反応物 3

HCID 7761Diethyl MalonateHCID 24758Sodium hydrideHCID 100588692,2,2-Trifluoro-N-phenylacetimidoyl Chloride

生成物 1

HCID 572200902-(2,2,2-Trifluoro-1-phenylimino-ethyl)-malonic acid diethyl ester

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

To a suspension of NaH (3.47 g, 145 mmol, 60% in mineral oil) in THF (200 mL) was added diethyl malonate (18.5 g, 116 mmol) at 0° C. The mixture was stirred for 30 min at this temperature and 2,2,2-trifluoro-N-phenyl-acetimidoyl chloride (19 g, 92 mmol) was added at 0° C. The reaction mixture was allowed to warm to room temperature and stirred overnight. The mixture was diluted with CH2Cl2, washed with saturated sodium bicarbonate solution and brine. The combined organic layers were dried over Na2SO4, filtered and concentrated to provide 2-(2,2,2-trifluoro-1-phenylimino-ethyl)-malonic acid diethyl ester, which was used directly in the next step without further purification.

後処理

  1. additionwas added at 0° C
  2. washwashed with saturated sodium bicarbonate solution and brine
  3. dry with materialThe combined organic layers were dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-d42e23a49e0b4e8fb4031ddcf8c4907c
出典データセット
uspto-grants-2009_02
特許番号
US07495103B2

反応ノート

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