Cesium carbonate → HCID 67407087, compound

HRID 913570Notes

Reaction equation

HRID 913570 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]([CH2:11][CH3:12])[NH:7][C:6]=2[CH:5]=[CH:4][C:3]=1[C:13]#[N:14].C([O-])([O-])=O.[Cs+].[Cs+].Cl[CH2:22][C:23]1[N:27]=[C:26]([C:28]2[CH:33]=[CH:32][CH:31]=[C:30]([C:34]([F:37])([F:36])[F:35])[CH:29]=2)[O:25][N:24]=1>CN(C=O)C>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]([CH2:11][CH3:12])[N:7]([CH2:22][C:23]3[N:27]=[C:26]([C:28]4[CH:33]=[CH:32][CH:31]=[C:30]([C:34]([F:37])([F:35])[F:36])[CH:29]=4)[O:25][N:24]=3)[C:6]=2[CH:5]=[CH:4][C:3]=1[C:13]#[N:14]

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 27366223-(Chloromethyl)-5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazoleHCID 674049024-chloro-2-ethyl-1H-benzimidazole-5-carbonitrile

Product 1

HCID 67407087HCID 67407087, compoundYield 12.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
90 °C

Procedure

4-Chloro-2-ethyl-1H-benzimidazole-5-carbonitrile (0.014 g, 0.068 mmol), Cs2CO3 (0.033 g, 0.102 mmol), and 3-(chloromethyl)-5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazole (0.027 g, 0.102 mmol) were combined in DMF (10 mL) and heated to 90° C. for 30 min. The cooled reaction mixture was partitioned between Et2O and water. The organic portion was washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. Purification (SiO2, EtOAc/hexanes) afforded the title compound (0.0037 g): MS (ESI) m/z 432 (M+1).

Workup

  1. customThe cooled reaction mixture
  2. customwas partitioned between Et2O and water
  3. washThe organic portion was washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification (SiO2, EtOAc/hexanes)

Sources & evidence

ORD record
ord-7643a33bd341423f85eac0498cb29a7d
Source dataset
uspto-grants-2011_09
Patent number
US08026262B2

Reaction notes

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