Ethanol → HCID 86704969, compound

HRID 572158Notes

Reaction equation

HRID 572158 reaction equation
[CH2:1](O)[CH3:2].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Br:23][C:24]1[C:28]2=[N:29][CH:30]=[CH:31][CH:32]=[C:27]2[NH:26][N:25]=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C>C1COCC1.O.C1(C)C=CC=CC=1>[Br:23][C:24]1[N:25]([CH2:1][CH3:2])[N:26]=[C:27]2[CH:32]=[CH:31][CH:30]=[N:29][C:28]=12

Participants

8

Reactant 4

HCID 702EthanolHCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 178419484HCID 178419484, compound

Product 1

HCID 86704969HCID 86704969, compound

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 1140TolueneSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of ethanol (0.118 ml) and triphenylphosphine (530 mg) in THF (3 ml) was added 3-bromo-1H-pyrazolo[4,3-b]pyridine (200 mg), and the mixture was heated at 50° C. A toluene solution (1.9 M, 1.06 ml) of DIAD was added dropwise at 50° C., and the mixture was stirred for 30 min. The reaction mixture was cooled to room temperature, water was added, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (71 mg).

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-93a526a934024906b1ad99b4fff6a62b
Source dataset
uspto-grants-2015_05
Patent number
US09029388B2

Reaction notes

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