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Cesium carbonate → (R)-4-Chloro-6-(1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyrimidin-2-amine

HRID 1499150
Notes
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Reaction equation

HRID 1499150 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]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 655222-Amino-4,6-dichloropyrimidineHCID 25210912(alphaR)-4-Chloro-2-(3-methyl-1H-pyrazol-1-yl)-alpha-(trifluoromethyl)benzenemethanol

Product 1

HCID 117952532(R)-4-Chloro-6-(1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyrimidin-2-amine

Reagents, catalysts & solvents 1

HCID 31275
1,4-Dioxane
Solvent

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

  1. temperatureThe reaction was then cooled to RT
  2. filtrationfiltered
  3. customThe solvent was removed in vacuo
  4. additionCH2Cl2 and heptane was added
  5. customprecipitated out
  6. filtrationThe solid was filtered

Sources & evidence

ORD record
ord-9273fb65c94246c393021462c6b6272b
Source dataset
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09199994B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes