Triacetoxyperiodinane → (2-{[(3,5-bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-methyl}-4-trifluoromethyl-phenyl)-cyclohexyl-methanone

HRID 2075020Notes

Reaction equation

HRID 2075020 reaction equation
[F:1][C:2]([F:41])([F:40])[C:3]1[CH:4]=[C:5]([CH:33]=[C:34]([C:36]([F:39])([F:38])[F:37])[CH:35]=1)[CH2:6][N:7]([CH2:14][C:15]1[CH:20]=[C:19]([C:21]([F:24])([F:23])[F:22])[CH:18]=[CH:17][C:16]=1[CH:25]([CH:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1)[OH:26])[C:8]1[N:9]=[N:10][N:11]([CH3:13])[N:12]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl.CCOCC.[OH-].[Na+]>[F:41][C:2]([F:1])([F:40])[C:3]1[CH:4]=[C:5]([CH:33]=[C:34]([C:36]([F:37])([F:38])[F:39])[CH:35]=1)[CH2:6][N:7]([CH2:14][C:15]1[CH:20]=[C:19]([C:21]([F:24])([F:23])[F:22])[CH:18]=[CH:17][C:16]=1[C:25]([CH:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1)=[O:26])[C:8]1[N:9]=[N:10][N:11]([CH3:13])[N:12]=1

Participants

6

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 58968665(2-{[(3,5-Bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-methyl}-4-trifluoromethyl-phenyl)-cyclohexyl-methanol

Product 1

HCID 58968633(2-{[(3,5-bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-methyl}-4-trifluoromethyl-phenyl)-cyclohexyl-methanoneYield 96%

Reagents, catalysts & solvents 3

HCID 3283Diethyl EtherSolventHCID 6344DichloromethaneSolventHCID 14798Sodium HydroxideSolvent

Procedure

To a solution of (2-{[(3,5-bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-methyl}-4-trifluoromethyl-phenyl)-cyclohexyl-methanol (5.46 g, 9.17 mmol) in methylene chloride (150 mL) at room temperature was added Dess-Martin periodinane (4.36 g, 10.3 mmol). The mixture was stirred at room temperature for 2 hours, diluted with ether (50 mL) and 1N sodium hydroxide (40 mL) was added. The mixture was extracted with ethyl acetate (2×100 mL). Combined organic layers were washed with 1N sodium hydroxide (2×40 mL), brine (50 mL), dried with sodium sulfate and concentrated in vacuo. The crude was purified by chromatography over 40+M Biotage silica column (eluted with 0-30% ethyl acetate in heptane) to afford the title compound as a pale yellow oil (5.2 g, 96%). 1H NMR (400 MHz, CDCl3) δ ppm 1.16-1.42 (m, 5H) 1.70 (d, J=12.03 Hz, 1H) 1.80 (d, J=9.54 Hz, 4H) 2.96-3.05 (m, 1H) 4.18 (s, 3H) 4.79 (s, 2H) 4.82 (s, 2H) 7.53 (s, 1H) 7.57 (d, J=8.30 Hz, 1H) 7.64 (d, J=7.88 Hz, 1H) 7.66 (s, 2H) 7.72 (s, 1H). MS (ES+) Calc: 593.2, Found: 594.5 (M+1)

Workup

  1. additionwas added
  2. extractionThe mixture was extracted with ethyl acetate (2×100 mL)
  3. washCombined organic layers were washed with 1N sodium hydroxide (2×40 mL), brine (50 mL)
  4. dry with materialdried with sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe crude was purified by chromatography over 40+M Biotage silica column (eluted with 0-30% ethyl acetate in heptane)

Sources & evidence

ORD record
ord-70f098c186b54ee68af21903c02191ce
Source dataset
uspto-grants-2011_04
Patent number
US07919506B2

Reaction notes

Loading…