Carbon Tetrachloride → 7-Chloro-2-(4-fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridine

HRID 1796532ノート

反応式

HRID 1796532 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:20]([C:21]3[CH:26]=[CH:25][N:24]=[C:23]([N:27]4[CH2:31][CH2:30][CH2:29][CH2:28]4)[N:22]=3)=[C:11]3[CH:12]=[CH:13][C:14]([C:16]([F:19])([F:18])[F:17])=[CH:15][N:10]3[N:9]=2)=[CH:4][CH:3]=1.C([Li])CCC.C(Cl)(Cl)(Cl)[Cl:38]>O1CCCC1>[Cl:38][C:15]1[N:10]2[N:9]=[C:8]([C:5]3[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=3)[C:20]([C:21]3[CH:26]=[CH:25][N:24]=[C:23]([N:27]4[CH2:28][CH2:29][CH2:30][CH2:31]4)[N:22]=3)=[C:11]2[CH:12]=[CH:13][C:14]=1[C:16]([F:19])([F:17])[F:18]

参加物

5

反応物 3

HCID 5943Carbon TetrachlorideHCID 221809222-(4-Fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridineHCID 178418339Butyllithium

生成物 1

HCID 221809127-Chloro-2-(4-fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridine収率 59%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a cold (−78° C.) solution of 2-(4-fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridine (86 mg, 0.20 mmol) in tetrahydrofuran (5 mL) was added n-butyllithium (0.30 mL, 1.6 M in hexane, 0.48 mmol) dropwise. The dark solution was stirred for 3 minutes, and then carbon tetrachloride (1 mL) was added. After 15 minutes, the bath was removed and the solution allowed to warm to room temperature and stirred an additional 15 minutes. Water was added then ether. The organics were washed with brine, and the aqueous layer was extracted with ether. The combined organics were dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by flash chromatography on silica (4:1 hexanes-ethyl acetate) to give 7-chloro-2-(4-fluorophenyl)-3-[2-(1-pyrrolidinyl)-4-pyrimidinyl]-6-(trifluoromethyl)pyrazolo[1,5-a]pyridine (55 mg, 59%) as a solid. 1H NMR (CDCl3): δ 8.50 (d, 1 H), 8.11 (d, 1 H), 7.62 (dd, 2 H), 7.50 (d, 1 H), 7.11 (t, 2 H), 6.22 (d, 1 H), 3.62 (m, 4 H), 2.01 (m, 4 H); MS m/z 462 (M+1).

後処理

  1. waitAfter 15 minutes
  2. customthe bath was removed
  3. stirringstirred an additional 15 minutes
  4. additionWater was added
  5. washThe organics were washed with brine
  6. extractionthe aqueous layer was extracted with ether
  7. dry with materialThe combined organics were dried over magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo
  10. customThe residue was purified by flash chromatography on silica (4:1 hexanes-ethyl acetate)

出典と根拠

ORDレコード
ord-fe42d60d438d4bde96aed8d8309d97da
出典データセット
uspto-grants-2006_04
特許番号
US07030134B2

反応ノート

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