Triacetoxyperiodinane → HCID 57786181, compound

HRID 1629001Notes

Reaction equation

HRID 1629001 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[CH:11]([C:16]4[CH:21]=[CH:20][C:19]([Cl:22])=[CH:18][C:17]=4[Cl:23])[O:12][CH2:13][CH2:14][CH2:15][N:7]3[C:6]=2[C:5]([CH2:24][OH:25])=[CH:4][CH:3]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(#N)C.C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:24]=[O:25])=[C:6]2[C:10]=1[N:9]=[C:8]1[CH:11]([C:16]3[CH:21]=[CH:20][C:19]([Cl:22])=[CH:18][C:17]=3[Cl:23])[O:12][CH2:13][CH2:14][CH2:15][N:7]21

Participants

5

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 57786182HCID 57786182, compound

Product 1

HCID 57786181HCID 57786181, compound

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a stirred solution of [10-chloro-1-(2,4-dichlorophenyl)-4,5-dihydro-1H,3H-[1,4]oxazepino[4,3-a]benzimidazol-7-yl]methanol (113 mg, 0.284 mmol) in acetonitrile (2.8 mL) was added Dess-Martin reagent (145 mg, 0.341 mmol) at room temperature. After 5 h, the reaction mixture was diluted with ethyl acetate, quenched with aqueous sodium hydrogen carbonate, washed with water and brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 10-50% ethyl acetate/n-hexane gradient mixture to give the title compound as a colorless amorphous (88.1 mg, 0.223 mmol, 78%).

Workup

  1. customquenched with aqueous sodium hydrogen carbonate
  2. washwashed with water and brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography on silica gel eluting with a 10-50% ethyl acetate/n-hexane gradient mixture

Sources & evidence

ORD record
ord-9287a02a0e8d4ce4ba8cced5ee1aa6ff
Source dataset
uspto-grants-2014_07
Patent number
US08785460B2

Reaction notes

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