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 1272788Notes

Reaction equation

HRID 1272788 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-c3c18dcb0b284e649b4e6e33148dbe41
Source dataset
uspto-grants-2007_04
Patent number
US07208513B2

Reaction notes

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