Triacetoxyperiodinane → 1-(1-benzenesulfonyl-5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-ethanone

HRID 1515914Notes

Reaction equation

HRID 1515914 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([C:19]([F:22])([F:21])[F:20])[CH:18]=[C:13]3[CH:12]=[C:11]2[CH:23]([OH:30])[CH2:24][CH:25]2[CH2:29][CH2:28][CH2:27][CH2:26]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>ClCCl>[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([C:19]([F:22])([F:21])[F:20])[CH:18]=[C:13]3[CH:12]=[C:11]2[C:23](=[O:30])[CH2:24][CH:25]2[CH2:29][CH2:28][CH2:27][CH2:26]2)(=[O:8])=[O:9])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

4

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 67229040HCID 67229040, compound

Product 1

HCID 672291651-(1-benzenesulfonyl-5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-ethanoneYield 100%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
25 °C

Procedure

To a solution of 1-(1-benzenesulfonyl-5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-ethanol (1.34 g, 3.07 mmol) in dichloromethane (50 ml) was added Dess-Martin periodinane (2.6 g, 6.14 mmol) at 25° C. The reaction mixture was stirred at 25° C. for 1 h and then quenched with a saturated aqueous sodium bicarbonate solution (20 mL). The mixture was extracted with ethyl acetate (100 mL), washed with a saturated aqueous sodium bicarbonate solution (3×20 mL), brine, dried over anhydrous sodium sulfate and then concentrated in vacuo. The residue was purified by flash column chromatography (silica gel from QingDao, 200-300 mesh, 50% dichloromethane/hexanes) to afford 1-(1-benzenesulfonyl-5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-ethanone (1.33 g, 100%) as a light yellow solid: LC/MS m/e calcd for C21H19F3N2O3S [M+H]+ 437.46, observed 436.8.

Workup

  1. customquenched with a saturated aqueous sodium bicarbonate solution (20 mL)
  2. extractionThe mixture was extracted with ethyl acetate (100 mL)
  3. washwashed with a saturated aqueous sodium bicarbonate solution (3×20 mL), brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography (silica gel from QingDao, 200-300 mesh, 50% dichloromethane/hexanes)

Sources & evidence

ORD record
ord-cd0f74ed382a4ced964fb1e29557e49e
Source dataset
uspto-grants-2012_07
Patent number
US08222416B2

Reaction notes

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