Toluene → 1-acetyl-3-{3-[4-(diphenylmethyl)-1-piperazinyl]propyl}-1,3-dihydro-2H-benzimidazol-2-one

HRID 354997

反応式

HRID 354997 の反応式
C(O[C:5](=[O:7])[CH3:6])(=O)C.[C:8]1([CH:14]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[N:15]2[CH2:20][CH2:19][N:18]([CH2:21][CH2:22][CH2:23][N:24]3[C:28]4[CH:29]=[CH:30][CH:31]=[CH:32][C:27]=4[NH:26][C:25]3=[O:33])[CH2:17][CH2:16]2)[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.CC1C=CC=CC=1>O>[C:5]([N:26]1[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[N:24]([CH2:23][CH2:22][CH2:21][N:18]2[CH2:19][CH2:20][N:15]([CH:14]([C:8]3[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=3)[C:34]3[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=3)[CH2:16][CH2:17]2)[C:25]1=[O:33])(=[O:7])[CH3:6]

参加物

5

反応物 3

HCID 1140TolueneHCID 4615OxatomideHCID 7918Acetic Anhydride

生成物 1

HCID 131055881-acetyl-3-{3-[4-(diphenylmethyl)-1-piperazinyl]propyl}-1,3-dihydro-2H-benzimidazol-2-one

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

A mixture of 1.55 parts of acetic acid anhydride, 3 parts of 1-{3-[4-(diphenylmethyl)-1-piperazinyl]propyl}-1,3-dihydro-2H-benzimidazol-2-one and 22.5 parts of methylbenzene is stirred and refluxed overnight. Water is added to the reaction mixture and the layers are separated. The organic phase is dried, filtered and evaporated. The residue is purified by column-chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent. The pure fractions are collected and the eluent is evaporated, yielding 1-acetyl-3-{3-[4-(diphenylmethyl)-1-piperazinyl]propyl}-1,3-dihydro-2H-benzimidazol-2-one; mp. 124.4° C.

後処理

  1. temperaturerefluxed overnight
  2. customthe layers are separated
  3. customThe organic phase is dried
  4. filtrationfiltered
  5. customevaporated
  6. customThe residue is purified by column-chromatography over silica gel using
  7. additiona mixture of trichloromethane and methanol (95:5 by volume) as eluent
  8. customThe pure fractions are collected
  9. customthe eluent is evaporated

出典と根拠

ORDレコード
ord-aad8a92e033a43599bf0eefee954b6b3
出典データセット
uspto-grants-1983_03
特許番号
US04377578

関連ノート

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