Acetic Acid → HCID 22562008、化合物

HRID 1839618ノート

反応式

HRID 1839618 の反応式
[C:1]1([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[C:7]1[CH:15]=[CH:14][CH:13]=[C:12]2[C:8]=1[CH:9]=[CH:10][NH:11]2.C([OH:24])C.C(O)(=O)C.[Br-].[Br-].[Br-].[NH+]1C=CC=CC=1.[NH+]1C=CC=CC=1.[NH+]1C=CC=CC=1>CC(O)(C)C.[Zn]>[C:1]1([C:16]2[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[C:7]1[CH:15]=[CH:14][CH:13]=[C:12]2[C:8]=1[CH2:9][C:10](=[O:24])[NH:11]2

参加物

7

反応物 4

HCID 176Acetic Acid2 回HCID 702EthanolHCID 21124087PyridiniumtribromideHCID 22561889HCID 22561889、化合物

生成物 1

HCID 22562008HCID 22562008、化合物収率 74%

試薬・触媒・溶媒 2

HCID 23994Zinc触媒HCID 6386tert-Butanol溶媒

実験手順

To the suspension of 4-bipheny-2-yl-1H-indole (1.18 g, 4.4 mmol) in t-BuOH:ethanol:acetic acid (28 mL:17 mL:9 mL) was added pyridinium tribromide (4.39 g, 13.7 mmol) portionwise. The mixture was stirred at room temperature for 3 hours, and then to the mixture was added acetic acid (22 mL). Zinc dust (1.63 g, 25 mmol) was added to the reaction mixture portionwise. After stirring for one hour, any unreacted zinc was filtered off and most of the solvent was removed under reduced pressure. The residue was diluted with ethyl acetate, washed with water (3×), sat. NaHCO3, brine, dried over Na2SO4, concentrated and triturated with ether to give 0.93 g (74%) of 4-biphenyl-2-yl-1,3-dihydro-indol-2-one.

後処理

  1. stirringAfter stirring for one hour
  2. filtrationany unreacted zinc was filtered off and most of the solvent
  3. customwas removed under reduced pressure
  4. additionThe residue was diluted with ethyl acetate
  5. washwashed with water (3×), sat. NaHCO3, brine
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated
  8. customtriturated with ether

出典と根拠

ORDレコード
ord-3efc3f1445eb48c4b0e963ca470cb86c
出典データセット
uspto-grants-2004_01
特許番号
US06677368B2

反応ノート

読み込み中…