Water → HCID 67776841, compound

HRID 1026305Notes

Reaction equation

HRID 1026305 reaction equation
[CH:1]1([CH2:4][O:5][C:6]2[CH:7]=[CH:8][C:9]3[C:13]([CH:14]=2)=[N:12][N:11]([C:15]2[CH:20]=[CH:19][C:18]([O:21][Si:22]([CH:29]([CH3:31])[CH3:30])([CH:26]([CH3:28])[CH3:27])[CH:23]([CH3:25])[CH3:24])=[CH:17][CH:16]=2)[CH:10]=3)[CH2:3][CH2:2]1.C([N-]C(C)C)(C)C.[Li+].C1C=CC(S(N(S(C2C=CC=CC=2)(=O)=O)[F:50])(=O)=O)=CC=1.O>C1COCC1>[CH:1]1([CH2:4][O:5][C:6]2[CH:7]=[CH:8][C:9]3[C:13]([CH:14]=2)=[N:12][N:11]([C:15]2[CH:20]=[CH:19][C:18]([O:21][Si:22]([CH:26]([CH3:28])[CH3:27])([CH:23]([CH3:25])[CH3:24])[CH:29]([CH3:31])[CH3:30])=[CH:17][CH:16]=2)[C:10]=3[F:50])[CH2:2][CH2:3]1

Participants

6

Reactant 4

HCID 962WaterHCID 588007N-FluorobenzenesulfonimideHCID 2724682Lithium diisopropylamideHCID 67777605HCID 67777605, compound

Product 1

HCID 67776841HCID 67776841, compoundYield 48.5%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a solution of 6-(cyclopropylmethoxy)-2-(4-{[tris(1-methylethyl)silyl]oxy}phenyl)-2H-indazole (218 mg) in THF (2.5 mL) was added dropwise a THF solution (1.11 M, 0.59 mL) of lithiumdiisopropylamide at −78° C. under an argon atmosphere, and the mixture was stirred for 30 min. To the reaction mixture was added N-fluorobenzenesulfonimide (236 mg) at −78° C., and the mixture was stirred at 0° C. for 1.5 hr. Water was added to the reaction mixture, and the mixture was extracted twice with ethyl acetate. The combined organic layer was washed with saturated brine, and 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 as colorless crystals (110 mg).

Workup

  1. stirringthe mixture was stirred at 0° C. for 1.5 hr
  2. extractionthe mixture was extracted twice with ethyl acetate
  3. washThe combined organic layer 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-6927bdc447ee4d4f89e49d840e6306c3
Source dataset
uspto-grants-2014_05
Patent number
US08729102B2

Reaction notes

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