Cesium carbonate → HCID 11197250, compound
Reaction equation
[F:1][C:2]([F:16])([F:15])[CH2:3][NH:4][C:5]1[CH:6]=[C:7]([C:13]#[N:14])[C:8]([C:11]#[N:12])=[CH:9][CH:10]=1.C([O-])([O-])=O.[Cs+].[Cs+].Br[CH2:24][C:25]([O:27][CH3:28])=[O:26]>CC#N>[C:13]([C:7]1[CH:6]=[C:5]([N:4]([CH2:3][C:2]([F:15])([F:16])[F:1])[CH2:24][C:25]([O:27][CH3:28])=[O:26])[CH:10]=[CH:9][C:8]=1[C:11]#[N:12])#[N:14]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 85 °C
Procedure
A solution of 4-[(2,2,2-trifluoroethyl)amino]-1,2-benzenedicarbonitrile (0.020 g, 0.089 mmol) in MeCN (3 mL) was treated with Cs2CO3 (0.078 g, 0.24 mmol) and methyl bromoacetate (0.037 g, 0.24 mmol) and heated at 85° C. under nitrogen for 8 h. Upon cooling, the mixture was partitioned between EtOAc and water. The organic phase was washed with brine, dried over Na2SO4 and concentrated. The residue was purified by silica gel chromatography (20-100% CH2Cl2-hexanes gradient) and the product crystallized from CH2Cl2-hexanes to give 0.015 g (58% yield) of the title compound as a white solid: MS (ES) m/z 296 (M−1).
Workup
- temperatureUpon cooling
- customthe mixture was partitioned between EtOAc and water
- washThe organic phase was washed with brine
- dry with materialdried over Na2SO4
- concentrationconcentrated
- customThe residue was purified by silica gel chromatography (20-100% CH2Cl2-hexanes gradient)
- customthe product crystallized from CH2Cl2-hexanes
Sources & evidence
- ORD record
- ord-df18a62da7804610ba0b5c91541ba94e
- Source dataset
- uspto-grants-2010_05
- Patent number
- US07723385B2
Reaction notes
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