Acetic Anhydride → HCID 178474484、化合物

HRID 354996ノート

反応式

HRID 354996 の反応式
[C:1]1([CH:7]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[N:8]2[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][CH2:16][N:17]3[C:21]4[CH:22]=[CH:23][CH:24]=[CH:25][C:20]=4[N:19]=[C:18]3[NH2:26])[CH2:10][CH2:9]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:33](OC(=O)C)(=[O:35])[CH3:34]>CC1C=CC=CC=1>[C:27]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[N:8]2[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][CH2:16][N:17]3[C:21]4[CH:22]=[CH:23][CH:24]=[CH:25][C:20]=4[NH:19][C:18]3=[N:26][C:33](=[O:35])[CH3:34])[CH2:10][CH2:9]2)[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1

参加物

4

反応物 2

HCID 7918Acetic AnhydrideHCID 131055851-{3-[4-(diphenylmethyl)piperazinyl]propyl}-1H-benzimidazol-2-amine

生成物 1

HCID 178474484HCID 178474484、化合物

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

実験手順

A mixture of 10.7 parts of 1-{3-[4-(diphenylmethyl)piperazinyl]propyl}-1H-benzimidazol-2-amine, 5.1 parts of acetic acid anhydride and 90 parts of methylbenzene is stirred and refluxed for 5 hours. The reaction mixture is evaporated and the residue is stirred in water. The whole is alkalized with ammonium hydroxide and the product is extracted with trichloromethane. The extract is dried, filtered and evaporated. The residue is crystallized from ethanol. The product is filtered off and dried, yielding N-[1-{3-[4-(diphenylmethyl)-1-piperazinyl]propyl}-1,3-dihydro-2H-benzimidazol-2-ylidene]acetamide; mp. 143.3° C.

後処理

  1. temperaturerefluxed for 5 hours
  2. customThe reaction mixture is evaporated
  3. stirringthe residue is stirred in water
  4. extractionthe product is extracted with trichloromethane
  5. customThe extract is dried
  6. filtrationfiltered
  7. customevaporated
  8. customThe residue is crystallized from ethanol
  9. filtrationThe product is filtered off
  10. customdried

出典と根拠

ORDレコード
ord-28ee71bb9dca46148a5e1c806b8271a6
出典データセット
uspto-grants-1983_03
特許番号
US04377578

反応ノート

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