Methyl iodide → 4-(Methyl(pyridin-3-yl)amino)picolinonitrile

HRID 1908978ノート

反応式

HRID 1908978 の反応式
[H-].[Na+].[N:3]1[CH:8]=[CH:7][CH:6]=[C:5]([NH:9][C:10]2[CH:15]=[CH:14][N:13]=[C:12]([C:16]#[N:17])[CH:11]=2)[CH:4]=1.[CH3:18]I>C1COCC1.CCOC(C)=O>[CH3:18][N:9]([C:5]1[CH:4]=[N:3][CH:8]=[CH:7][CH:6]=1)[C:10]1[CH:15]=[CH:14][N:13]=[C:12]([C:16]#[N:17])[CH:11]=1

参加物

6

反応物 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 552106954-(Pyridin-3-ylamino)picolinonitrile

生成物 1

HCID 583492584-(Methyl(pyridin-3-yl)amino)picolinonitrile収率 32.1%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒2 回HCID 8857Ethyl Acetate溶媒

反応条件

温度
0 °C

実験手順

NaH (185 mg, 7.71 mmol, 1.10 eq) was added to a flame-dried round-bottom flask and anhydrous THF (17.5 mL) was added. The slurry was cooled to 0° C. and compound 10 (1.374 g, 7.003 mmol, 1.000 eq) was added as a solution in THF (17.5 mL). After stirring at 0° C. for 30 minutes methyl iodide (481 μL, 7.71 mmol, 1.10 eq) was added and the reaction was allowed to warm to room temperature while stirring overnight. The reaction was diluted with EtOAc and washed with water (1×). The aqueous layer was back extracted (1×) with EtOAc and the combined organics were washed with brine, dried (MgSO4), filtered and concentrated in vacuo. Purification by flash chromatography on silica gel afforded 473 mg (32%) of the title compound as a white solid: 1H NMR (400 MHz, CDCl3) δ1H NMR (400 MHz, DMSO-d6) δ 8.58 (d, J=2.5 Hz, 1H), 8.56 (dd, J=1.2, 4.7 Hz, 1H), 8.24 (d, J=6.0 Hz, 1H), 7.81 (dq, J=1.4, 8.2 Hz, 1H), 7.56-7.53 (m, 1H), 7.25 (d, J=2.6 Hz, 1H), 6.80 (dd, J=2.7, 6.0 Hz, 1H), 3.36 (s, 3H); ES-MS [M+1]+:211.1.

後処理

  1. additionwas added
  2. temperatureto warm to room temperature
  3. washwashed with water (1×)
  4. extractionThe aqueous layer was back extracted (1×) with EtOAc
  5. washthe combined organics were washed with brine
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customPurification by flash chromatography on silica gel

出典と根拠

ORDレコード
ord-d6585d852eaf4110a14c4639a1ecbdb0
出典データセット
uspto-grants-2013_12
特許番号
US08598345B2

反応ノート

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