Triacetoxyperiodinane → HCID 178438656, compound

HRID 2048494Notes

Reaction equation

HRID 2048494 reaction equation
[OH:1][CH2:2][CH2:3][O:4][C@H:5]1[CH2:10][CH2:9][C@H:8]([N:11]2[C:16](=[O:17])[C:15]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([C:25]4[C:26]([C:31]#[N:32])=[CH:27][CH:28]=[CH:29][CH:30]=4)=[CH:21][CH:20]=3)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]3[N:36]=[CH:37][N:38]=[C:12]23)[CH2:7][CH2:6]1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C1=CC=CC=2)=O>C(#N)C.C(=O)([O-])O.[Na+]>[O:17]=[C:16]1[C:15]([CH2:18][C:19]2[CH:24]=[CH:23][C:22]([C:25]3[C:26]([C:31]#[N:32])=[CH:27][CH:28]=[CH:29][CH:30]=3)=[CH:21][CH:20]=2)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]2[N:36]=[CH:37][N:38]=[C:12]2[N:11]1[C@H:8]1[CH2:7][CH2:6][C@H:5]([O:4][CH2:3][CH:2]=[O:1])[CH2:10][CH2:9]1

Participants

5

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 178438657HCID 178438657, compound

Product 1

HCID 178438656HCID 178438656, compound

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 516892Sodium BicarbonateSolvent

Procedure

To a solution of 4′-({4-[trans-4-(2-hydroxyethoxy)cyclohexyl]-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (1.19 g) in acetonitrile (20 mL) was added 1,1,1-triacetoxy-1,1-dihydro-1,2-benziodoxol-3(1H)-one (1.27 g) under ice-cooling, and the mixture was stirred at room temperature for 3 days. The reaction mixture was diluted with saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=65/35→40/60 (volume ratio)] to give the title compound as a colorless amorphous compound (739 mg, 63%).

Workup

  1. temperaturecooling
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract 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 chromatography [eluent: hexane/ethyl acetate=65/35→40/60 (volume ratio)]

Sources & evidence

ORD record
ord-5adea9b818c44f4f884c8ad210a7b7ab
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

Loading…