Cesium carbonate → (R)-4-Chloro-6-(1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyrimidin-2-amine
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([OH:13])[C:9]([F:12])([F:11])[F:10])=[C:4]([N:14]2[CH:18]=[CH:17][C:16]([CH3:19])=[N:15]2)[CH:3]=1.[Cl:20][C:21]1[CH:26]=[C:25](Cl)[N:24]=[C:23]([NH2:28])[N:22]=1.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1>[Cl:20][C:21]1[CH:26]=[C:25]([O:13][C@H:8]([C:5]2[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][C:4]=2[N:14]2[CH:18]=[CH:17][C:16]([CH3:19])=[N:15]2)[C:9]([F:12])([F:11])[F:10])[N:24]=[C:23]([NH2:28])[N:22]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 80 °C
Procedure
To a solution of (1R)-1-[4-chloro-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoroethanol (40 g, 138 mmol) in dioxane (400 mL) was added 4,6-dichloropyrimidin-2-amine (113 g, 690 mmol) and Cs2CO3 (132 g, 405 mmol). The mixture was heated for 24 h at 80° C. The reaction was then cooled to RT and filtered. The solvent was removed in vacuo, then CH2Cl2 and heptane was added. The solvent volume was reduced until a solid precipitated out. The solid was filtered and the procedure repeated several times to provide 4-chloro-6-[(1R)-1-[4-chloro-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoro-ethoxy]pyrimidin-2-amine as a white solid.
Workup
- temperatureThe reaction was then cooled to RT
- filtrationfiltered
- customThe solvent was removed in vacuo
- additionCH2Cl2 and heptane was added
- customprecipitated out
- filtrationThe solid was filtered
Sources & evidence
- ORD record
- ord-9273fb65c94246c393021462c6b6272b
- Source dataset
- uspto-grants-2015_12
- Patent number
- US09199994B2
Reaction notes
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