Sodium Hydroxide → HCID 59836067, compound

HRID 272052Notes

Reaction equation

HRID 272052 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[N:10]=[C:11]2[C:17]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=3[O:24][CH3:25])=[CH:16][N:15](S(C3C=CC(C)=CC=3)(=O)=O)[C:12]2=[N:13][CH:14]=1.[OH-].[Na+]>CO.O>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[N:10]=[C:11]2[C:17]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=3[O:24][CH3:25])=[CH:16][NH:15][C:12]2=[N:13][CH:14]=1

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 59836181HCID 59836181, compound

Product 1

HCID 59836067HCID 59836067, compoundYield 32%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

To a solution of 2,7-Bis-(2-methoxy-phenyl)-5-(toluene-4-sulfonyl)-5H-pyrrolo[2,3-b]pyrazine (200 mg, 0.412 mmol) in MeOH (5 mL) was added a solution of NaOH (66 mg, 1.65 mmol) in water (200 μL). The mixture was stirred at room temperature for 3.5 hours before the solvents were removed. The resulting yellow residue was then purified by flash silica gel chromatography using a gradient of ethyl acetate in hexanes to afford 2,7-Bis-(2-methoxy-phenyl)-5H-pyrrolo[2,3-b]pyrazine (43 mg, 32% yield) as a pale yellow solid. 1H-NMR (500 MHz, CD3OD) δ12.21 (s br, 1H), 8.80 (dd, 6.0 Hz, 1.75 Hz, 1H), 8.69 (s, 1H), 7.76 (dd, 6.0 Hz, 1.75 Hz, 1H), 7.43 (dt, 7.5 Hz, 1.75 Hz, 1H), 7.20 (m, 2H), 7.13 (m, 2H), 7.04 (t, 7.3 Hz, 1H), 3.92 (s, 3H), 3.85 (s, 3H). MS: m/z 332.1 [MH+].

Workup

  1. customwere removed
  2. customThe resulting yellow residue was then purified by flash silica gel chromatography

Sources & evidence

ORD record
ord-a6d020016c564b8db28fd6692fa8c001
Source dataset
uspto-grants-2008_11
Patent number
US07452993B2

Reaction notes

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