Iodine → 4-Chloro-5-fluoro-2-iodo-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine

HRID 1521996ノート

反応式

HRID 1521996 の反応式
[Cl:1][C:2]1[C:7]([F:8])=[CH:6][N:5]=[C:4]2[N:9]([S:12]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)(=[O:14])=[O:13])[CH:10]=[CH:11][C:3]=12.C([N-]C(C)C)(C)C.[Li+].O1CCCC1.CCCCCCC.C(C1C=CC=CC=1)C.[I:49]I>O1CCCC1>[Cl:1][C:2]1[C:7]([F:8])=[CH:6][N:5]=[C:4]2[N:9]([S:12]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:10]([I:49])=[CH:11][C:3]=12

参加物

6

反応物 4

HCID 807IodineHCID 2724682Lithium diisopropylamideHCID 22742125Tetrahydrofuran heptane ethylbenzolHCID 497616281-(Benzenesulfonyl)-4-chloro-5-fluoro-1H-pyrrolo[2,3-b]pyridine

生成物 1

HCID 904139044-Chloro-5-fluoro-2-iodo-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
-78 °C

実験手順

To a solution of Example 231A (3.560 g, 11.46 mmol) in tetrahydrofuran (75 mL) at 78° C. was added dropwise 2M lithium diisopropylamide in tetrahydrofuran/heptane/ethylbenzene (11.46 mL, 22.91 mmol). The mixture was stirred at −78° C. for 30 minutes and iodine (5.82 g, 22.91 mmol) in tetrahydrofuran (25 mL) was added. After stirring at −78° C. for 3 hours, the reaction was quenched with aqueous sodium thiosulfate and extracted with ethyl acetate (twice). The combined organic layers were dried over magnesium sulfate, filtered, concentrated until most solvent was removed. The suspension was diluted with ethyl acetate and warmed with a heat gun. Heptanes were added to the suspension and the mixture was stirred for 1 hour. The solid was filtered, washed with heptanes/ethyl acetate (1:1), and vacuum oven-dried to give the title compound. The filtrate was concentrated and triturated with heptanes/ethyl acetate (1:1) to give additional title compound. MS (ESI+) m/z 436.9 (M+H)+.

後処理

  1. stirringAfter stirring at −78° C. for 3 hours
  2. customthe reaction was quenched with aqueous sodium thiosulfate
  3. extractionextracted with ethyl acetate (twice)
  4. dry with materialThe combined organic layers were dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated until most solvent
  7. customwas removed
  8. additionThe suspension was diluted with ethyl acetate
  9. temperaturewarmed with a heat gun
  10. additionHeptanes were added to the suspension
  11. stirringthe mixture was stirred for 1 hour
  12. filtrationThe solid was filtered
  13. washwashed with heptanes/ethyl acetate (1:1), and vacuum
  14. customoven-dried

出典と根拠

ORDレコード
ord-cd09dc8bd68b48039e6c50b5db4897f0
出典データセット
uspto-grants-2015_07
特許番号
US09073922B2

反応ノート

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