Water → HCID 67777577, compound

HRID 1026304Notes

Reaction equation

HRID 1026304 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.[CH:32]([N-]C(C)C)(C)C.[Li+].CI.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[CH3:32])[CH2:2][CH2:3]1

Participants

6

Reactant 4

HCID 962WaterHCID 6328Methyl iodideHCID 2724682Lithium diisopropylamideHCID 67777605HCID 67777605, compound

Product 1

HCID 67777577HCID 67777577, compound

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 (5 mL) was added dropwise a THF solution (1.11 M, 0.59 mL) of lithium diisopropylamide at −78° C. under an argon atmosphere, and the mixture was stirred for 30 min. To the reaction mixture was added methyl iodide (142 mg) at −78° C., and the mixture was stirred 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 a colorless oil (159 mg).

Workup

  1. stirringthe mixture was stirred 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-e1f463331c2f47c09b48641ce695978b
Source dataset
uspto-grants-2014_05
Patent number
US08729102B2

Reaction notes

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