Ethyl Acetate → HCID 57786111, compound

HRID 1629004Notes

Reaction equation

HRID 1629004 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]([C:24]([CH:26]2[CH2:28][CH2:27]2)=[O:25])=[CH:4][CH:3]=1.[CH:29]1([Mg]Br)[CH2:31][CH2:30]1.C(OCC)(=O)C.[Cl-].[NH4+]>O1CCCC1>[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]([C:24]([CH:29]2[CH2:31][CH2:30]2)([CH:26]2[CH2:28][CH2:27]2)[OH:25])=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 8857Ethyl AcetateHCID 25517Ammonium ChlorideHCID 57785882HCID 57785882, compoundHCID 178418630HCID 178418630, compound

Product 1

HCID 57786111HCID 57786111, compoundYield 65%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

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](cyclopropyl)methanone (67.1 mg, 0.154 mmol) in tetrahydrofuran (1 mL) was added a solution of cyclopropyl magnesium bromide in tetrahydrofuran (1.0 M, 4.62 mL, 4.62 mmol) at 0° C. After 15 min, the reaction mixture was poured into a mixture of ethyl acetate and aqueous ammonium chloride. The organic phase was washed with brine, dried over sodium sulfate, filtrated, and concentrated in vacuo. The residue was purified by flash column chromatography on NH silica gel eluting with a 0-25% ethyl acetate/n-hexane gradient mixture to give the title compound as a colorless solid (48.2 mg, 0.101 mmol, 65%).

Workup

  1. washThe organic phase was washed with brine
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltrated
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash column chromatography on NH silica gel eluting with a 0-25% ethyl acetate/n-hexane gradient mixture

Sources & evidence

ORD record
ord-181fae78336b4904bce99a7b98663543
Source dataset
uspto-grants-2014_07
Patent number
US08785460B2

Reaction notes

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