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Water → HCID 798732、化合物

HRID 727093
ノート
印刷プレビュー

反応式

HRID 727093 の反応式
[C:1](=[N:9][OH:10])([NH2:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].C[C:14]1[CH:22]=[N:21][CH:20]=[CH:19][C:15]=1[C:16](N)=O.O>O1CCCC1.ClCCl>[C:2]1([C:1]2[N:8]=[C:16]([C:15]3[CH:14]=[CH:22][N:21]=[CH:20][CH:19]=3)[O:10][N:9]=2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 962WaterHCID 24758Sodium hydrideHCID 69186N'-HydroxybenzenecarboximidamideHCID 27624893-Methylisonicotinamide

生成物 1

HCID 798732HCID 798732、化合物収率 25.2%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒
HCID 8028
Tetrahydrofuran
溶媒
2 回

反応条件

温度
50 °C

実験手順

To a mixture of benzamide oxime (12.8 g, 94 mmol) and 4 Å sieves (80 g) in tetrahydrofuran (250 ml) under a nitrogen atmosphere was carefully added sodium hydride (55% dispersed in oil, 4.3 g, 98 mmol) portionwise. When addition was complete the reaction was heated at 50° C. for 1 hour. Methyl isonicotinamide (5.6 ml, 47 mmol) in tetrahydrofuran (50 ml) was added, and the reaction stirred at reflux for 2 hours. The reaction was cooled to room temperature and water (200 ml) and dichloromethane (300 ml) added. The mixture was filtered through a pad of Celite and the two phases separated. The aqueous phase was extracted with a further portion of dichloromethane (250 ml). The combined organic phases were washed with saturated brine (200 ml), dried (MgSO4) and evaporated in vacuo. The residue was triturated with ethyl acetate to yield the title compound as a white solid (2.64 g, 25%). δH (CDCl3) 7.50-7.56 (3H, m, ArH), 8.05-8.07 (2H, m, ArH), 8.16-8.19 (2H, m, ArH), 8.89 (2H, dd, J 4.4, 1.6 Hz, pyridyl 2-H, 6-H).

後処理

  1. additionWhen addition
  2. temperatureat reflux for 2 hours
  3. temperatureThe reaction was cooled to room temperature
  4. filtrationThe mixture was filtered through a pad of Celite
  5. customthe two phases separated
  6. extractionThe aqueous phase was extracted with a further portion of dichloromethane (250 ml)
  7. washThe combined organic phases were washed with saturated brine (200 ml)
  8. dry with materialdried (MgSO4)
  9. customevaporated in vacuo
  10. customThe residue was triturated with ethyl acetate

出典と根拠

ORDレコード
ord-ca57ee9035b54a87aeaaf53d0d0c571f
出典データセット
uspto-grants-1998_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05712285

反応ノート

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