Phosphorus oxychloride → 2-chloro-4-(1-tosyl-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidine-5-carbonitrile

HRID 887338Notes

Reaction equation

HRID 887338 reaction equation
O[C:2]1[N:7]=[C:6]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[C:14]([C:17]([F:20])([F:19])[F:18])[CH:15]=3)[N:10]([S:21]([C:24]3[CH:30]=[CH:29][C:27]([CH3:28])=[CH:26][CH:25]=3)(=[O:23])=[O:22])[CH:9]=2)[C:5]([C:31]#[N:32])=[CH:4][N:3]=1.P(Cl)(Cl)([Cl:35])=O>>[Cl:35][C:2]1[N:7]=[C:6]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[C:14]([C:17]([F:20])([F:19])[F:18])[CH:15]=3)[N:10]([S:21]([C:24]3[CH:30]=[CH:29][C:27]([CH3:28])=[CH:26][CH:25]=3)(=[O:23])=[O:22])[CH:9]=2)[C:5]([C:31]#[N:32])=[CH:4][N:3]=1

Participants

3

Reactant 2

HCID 24813Phosphorus oxychlorideHCID 178427354HCID 178427354, compound

Product 1

HCID 594144402-chloro-4-(1-tosyl-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidine-5-carbonitrileYield 78%

Conditions

Temperature
0 °C

Procedure

2-hydroxy-4-(1-tosyl-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidine-5-carbonitrile (880.2 mg, 1.916 mmol) was cooled down with an ice bath. Phosphorus oxychloride (2.938 g, 1.786 mL, 19.16 mmol) was added dropwise and the reaction mixture was stirred for 30 minutes at 0° C. and then allowed to warm up to rt and stirred at room temperature for 18 hours. The reaction mixture was quenched by slow addition onto ice. After 1 hour of stirring, the mixture was extracted into ethyl acetate. The organic layer was dried over magnesium sulfate, filtered and concentrated in vacuo to afford a pale orange solid. The solid was triturated further in EtOAc and filtered off (715.4 mg, 78% yield)

Workup

  1. temperatureto warm up to rt
  2. stirringstirred at room temperature for 18 hours
  3. customThe reaction mixture was quenched by slow addition onto ice
  4. stirringAfter 1 hour of stirring
  5. extractionthe mixture was extracted into ethyl acetate
  6. dry with materialThe organic layer was dried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customto afford a pale orange solid
  10. customThe solid was triturated further in EtOAc
  11. filtrationfiltered off (715.4 mg, 78% yield)

Sources & evidence

ORD record
ord-89b7518ff719458facdc448bbc738b80
Source dataset
uspto-grants-2012_08
Patent number
US08247421B2

Reaction notes

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