1-[3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazol-5-yl]-2-phenylethan-1-ol → 1-[3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazol-5-yl]-2-phenylethan-1-one

HRID 1353711Notes

Reaction equation

HRID 1353711 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:16]3[C:11](=[CH:12][CH:13]=[C:14]([CH:17]([OH:25])[CH2:18][C:19]4[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=4)[CH:15]=3)[N:10]([CH:26]3[CH2:31][CH2:30][CH2:29][CH2:28][O:27]3)[N:9]=2)=[CH:4][CH:3]=1.[Cr](Cl)([O-])(=O)=O.[NH+]1C=CC=CC=1>ClCCl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:16]3[C:11](=[CH:12][CH:13]=[C:14]([C:17](=[O:25])[CH2:18][C:19]4[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=4)[CH:15]=3)[N:10]([CH:26]3[CH2:31][CH2:30][CH2:29][CH2:28][O:27]3)[N:9]=2)=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 224803491-[3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazol-5-yl]-2-phenylethan-1-olHCID 178418287HCID 178418287, compound

Product 1

HCID 224800011-[3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazol-5-yl]-2-phenylethan-1-oneYield 51%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A suspension of 1-[3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazol-5-yl]-2-phenylethan-1-ol (0.223 g, 0.54 mmol) and pyridinium chlorochromate (1.0 g, 4.6 mmol) in dried dichloromethane (10 mL) under nitrogen was stirred at ambient temperature for 6 hours. It was diluted with dichloromethane and washed with saturated sodium bicarbonate and brine. The organic layer was dried over magnesium sulfate, filtered, and concentrated. The residue was then purified by chromatography (SiO2, 15–30% ethyl acetate/hexane) to provide the title compound (0.112 g, 51% yield): 1H NMR (CDCl3) δ 8.62 (d, 1H), 8.10 (dd, 1H), 7.85–7.90 (m, 2H), 7.65 (dd, 1H), 7.19–7.37 (m, 7H), 5.77 (dd, 1H), 4.35 (s, 2H), 4.06 (m, 1H), 3.77 (m, 1H), 2.59 (m, 1H), 2.14 (m, 2H), 1.70 (m, 3H); ES-MS (m/z) 415 [M+1]+.

Workup

  1. washwashed with saturated sodium bicarbonate and brine
  2. dry with materialThe organic layer was dried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was then purified by chromatography (SiO2, 15–30% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-f3f0ce05191947b18bfefb50b8b42049
Source dataset
uspto-grants-2007_05
Patent number
US07220771B2

Reaction notes

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