Hydrochloric Acid → 3-(2-methoxyphenyl)-1H-indazole-5-carbonitrile

HRID 2183163Notes

Reaction equation

HRID 2183163 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[C:17]2[C:12](=[CH:13][CH:14]=[C:15]([C:18]#[N:19])[CH:16]=2)[N:11](C2CCCCO2)[N:10]=1.Cl.C(=O)(O)[O-].[Na+]>O1CCCC1>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[C:17]2[C:12](=[CH:13][CH:14]=[C:15]([C:18]#[N:19])[CH:16]=2)[NH:11][N:10]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 516892Sodium BicarbonateHCID 224801423-(2-methoxyphenyl)-1-perhydro-2H-pyran-2-yl-1H-indazole-5-carbonitrile

Product 1

HCID 224800393-(2-methoxyphenyl)-1H-indazole-5-carbonitrile

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

3-(2-Methoxyphenyl)-1-perhydro-2H-pyran-2-yl-1H-indazole-5-carbonitrile (0.539 g, 2.17 mmol) was dissolved in 10 mL of tetrahydrofuran. Aqueous hydrogen chloride (10 mL, 6.0N) was added and the reaction mixture was stirred at room temperature for 12 hours, then reflux temperature for 7 hours. The pH of the reaction was neutralized using saturated sodium bicarbonate and the crude was extracted with ethyl acetate (3×15 mL). Attempt to purify the crude by column chromatography was unsuccessful: ES-MS (m/z) 250 [M+1]+.

Workup

  1. temperaturereflux temperature for 7 hours
  2. extractionthe crude was extracted with ethyl acetate (3×15 mL)
  3. customto purify the crude by column chromatography

Sources & evidence

ORD record
ord-91bbef0637c2456f82ff7c9253a13d3a
Source dataset
uspto-grants-2005_05
Patent number
US06897231B2

Reaction notes

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