Potassium Carbonate → HCID 178509517, compound

HRID 1842494Notes

Reaction equation

HRID 1842494 reaction equation
[NH:1]1[CH2:6][CH2:5][CH:4]([C:7]2[NH:11][C:10]3[CH:12]=[CH:13][C:14]([C:16]#[N:17])=[CH:15][C:9]=3[N:8]=2)[CH2:3][CH2:2]1.[Cl:18][C:19]1[C:24](Cl)=[N:23][CH:22]=[CH:21][N:20]=1.C([O-])([O-])=O.[K+].[K+]>CC#N>[Cl:18][C:19]1[C:24]([N:1]2[CH2:2][CH2:3][CH:4]([C:7]3[NH:11][C:10]4[CH:12]=[CH:13][C:14]([C:16]#[N:17])=[CH:15][C:9]=4[N:8]=3)[CH2:5][CH2:6]2)=[N:23][CH:22]=[CH:21][N:20]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 785752,3-DichloropyrazineHCID 178509519HCID 178509519, compound

Product 1

HCID 178509517HCID 178509517, compoundYield 65%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
80 °C

Procedure

The mixture of 2-piperidin-4-yl-1H-benzoimidazole-5-carbonitrile (2 g, 8.8 mmol), 2,3-dichloro-pyrazine (1.43 g, 9.7 mmol) and K2CO3 (2.4 g, 17.6 mmol) in CH3CN (20 mL) was heated to 80° C. for 10 h, then it was concentrated and partitioned between DCM and H2O. The organic layer was dried over Na2SO4 and concentrated to give the desired compound (1.5 g, 65%). The crude product was used for next step without further purification.

Workup

  1. concentrationit was concentrated
  2. custompartitioned between DCM and H2O
  3. dry with materialThe organic layer was dried over Na2SO4
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-930163f7adc64ba6934095bdce991e67
Source dataset
uspto-grants-2015_02
Patent number
US08946230B2

Reaction notes

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