Dicyclohexylcarbodiimide → 3-Benzylpyrrolylmethyl 2-(2-methyl-4-trifluoromethylphenylamino)-3-methylbutanoate

HRID 1413968ノート

反応式

HRID 1413968 の反応式
[CH2:1]([C:8]1[CH:12]=[CH:11][NH:10][C:9]=1[CH2:13][OH:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:15][C:16]1[CH:21]=[C:20]([C:22]([F:25])([F:24])[F:23])[CH:19]=[CH:18][C:17]=1[NH:26][CH:27]([CH:31]([CH3:33])[CH3:32])[C:28](O)=[O:29].C1(N=C=NC2CCCCC2)CCCCC1>CN(C)C1C=CN=CC=1.C(Cl)Cl.CN(C)C=O>[CH3:15][C:16]1[CH:21]=[C:20]([C:22]([F:24])([F:25])[F:23])[CH:19]=[CH:18][C:17]=1[NH:26][CH:27]([CH:31]([CH3:33])[CH3:32])[C:28]([O:14][CH2:13][C:9]1[NH:10][CH:11]=[CH:12][C:8]=1[CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)=[O:29]

参加物

7

反応物 3

HCID 10868DicyclohexylcarbodiimideHCID 202893022-(2-Methyl-4-trifluoromethylphenylamino)-3-methylbutanoic acidHCID 543430813-Benzyl-1-pyrrolylmethanol

生成物 1

HCID 202893043-Benzylpyrrolylmethyl 2-(2-methyl-4-trifluoromethylphenylamino)-3-methylbutanoate

試薬・触媒・溶媒 3

HCID 142844-(Dimethylamino)pyridine触媒HCID 6228Dimethylformamide溶媒HCID 6344Dichloromethane溶媒

実験手順

To a stirred solution of 3-benzylpyrrolylmethyl alcohol (1.8 mmol), 2-(2-methyl-4-trifluoromethylphenylamino)-3-methylbutanoic acid (2.0 mmol) and 4-dimethylaminopyridine (0.65 mmol) in 20 ml of methylene chloride and 2 ml of dimethylformamide is added N,N'-dicyclohexylcarbodiimide (2.0 mml). The reaction mixture is stirred, under nitrogen, for two hours and then filtered and extracted with water. The aqueous phase is extracted with ether. The combined organic phases are washed with saturated aqueous sodium bicarbonate, water and saturated aqueous sodium chloride, dried over calcium sulfate and solvent evaporated. The crude product is chromatographed on a rotary chromatograph eluting with 25% ether/hexane to yield 3-benzylpyrrolylmethyl 2-(2-methyl-4-trifluoromethylphenylamino)-3-methylbutanoate.

後処理

  1. filtrationfiltered
  2. extractionextracted with water
  3. extractionThe aqueous phase is extracted with ether
  4. washThe combined organic phases are washed with saturated aqueous sodium bicarbonate, water and saturated aqueous sodium chloride
  5. dry with materialdried over calcium sulfate and solvent
  6. customevaporated
  7. customThe crude product is chromatographed on a rotary chromatograph
  8. washeluting with 25% ether/hexane

出典と根拠

ORDレコード
ord-100534890eee4f8688de021fe49c0fc2
出典データセット
uspto-grants-1981_02
特許番号
US04252724

反応ノート

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