Triacetoxyperiodinane → HCID 66976649, compound

HRID 1022827Notes

Reaction equation

HRID 1022827 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:9]2[O:15][CH2:14][CH2:13][N:12]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:11][CH:10]2[OH:23])[CH:5]=[CH:6][C:7]=1[Cl:8].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.C(=O)([O-])O.[Na+]>C(#N)C>[Cl:1][C:2]1[CH:3]=[C:4]([CH:9]2[O:15][CH2:14][CH2:13][N:12]([C:16]([O:18][C:19]([CH3:21])([CH3:20])[CH3:22])=[O:17])[CH2:11][C:10]2=[O:23])[CH:5]=[CH:6][C:7]=1[Cl:8]

Participants

5

Reactant 3

HCID 159087TriacetoxyperiodinaneHCID 516892Sodium BicarbonateHCID 66975075tert-butyl (6RS,7SR)-7-(3,4-dichlorophenyl)-6-hydroxy-1,4-oxazepane-4-carboxylate

Product 1

HCID 66976649HCID 66976649, compoundYield 81.8%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution (60 ml) of tert-butyl (6RS,7SR)-7-(3,4-dichlorophenyl)-6-hydroxy-1,4-oxazepane-4-carboxylate (9.18 g) in acetonitrile was added Dess-Martin reagent (15.1 g) under ice-cooling, and the mixture was stirred for 1 hr. The reaction solution was poured into saturated aqueous sodium hydrogen carbonate, and the mixture was extracted with ethyl acetate. The organic layer was washed with brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel chromatography (hexane/ethyl acetate) to give the title compound (7.47 g).

Workup

  1. temperaturecooling
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with 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 (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-a1df676b359c425eb3f0aadb46e51cd9
Source dataset
uspto-grants-2014_05
Patent number
US08722662B2

Reaction notes

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