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Cesium carbonate → Isopropyl 2-[3-[[5-(3,5-difluorophenyl)-2,3-dimethyl-phenyl]methylamino]-2,4-difluoro-phenoxy]acetate

HRID 1771825
Notes
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Reaction equation

HRID 1771825 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:10]=[C:11]([CH3:27])[C:12]([CH3:26])=[C:13]([CH2:15][NH:16][C:17]3[C:18]([F:25])=[C:19]([OH:24])[CH:20]=[CH:21][C:22]=3[F:23])[CH:14]=2)[CH:5]=[C:6]([F:8])[CH:7]=1.C([O-])([O-])=O.[Cs+].[Cs+].Br[CH2:35][C:36]([O:38][CH:39]([CH3:41])[CH3:40])=[O:37]>CN(C=O)C.O>[F:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:10]=[C:11]([CH3:27])[C:12]([CH3:26])=[C:13]([CH2:15][NH:16][C:17]3[C:18]([F:25])=[C:19]([CH:20]=[CH:21][C:22]=3[F:23])[O:24][CH2:35][C:36]([O:38][CH:39]([CH3:41])[CH3:40])=[O:37])[CH:14]=2)[CH:5]=[C:6]([F:8])[CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 121593Isopropyl bromoacetateHCID 894437053-[[5-(3,5-Difluorophenyl)-2,3-dimethyl-phenyl]methylamino]-2,4-difluoro-phenol

Product 1

HCID 89445489Isopropyl 2-[3-[[5-(3,5-difluorophenyl)-2,3-dimethyl-phenyl]methylamino]-2,4-difluoro-phenoxy]acetateYield 96.7%

Reagents, catalysts & solvents 2

HCID 962
Water
Solvent
HCID 6228DimethylformamideSolvent

Procedure

To a solution of 3-[[5-(3,5-difluorophenyl)-2,3-dimethyl-phenyl]methylamino]-2,4-difluoro-phenol (20 mg, 0.05 mmol, 1.0 eq) in DMF (3 mL) was added Cs2CO3 (26 mg, 0.075 mmol, 1.5 eq). The mixture was stirred at room temperature for 30 min then isopropyl bromoacetate (11 mg, 0.06 mmol, 1.2 eq) was added. The reaction mixture was stirred at room temperature for a further 1 h then diluted with water and extracted with EtOAc. The combined organic extracts were washed with water and brine, dried (Na2SO4), filtered and evaporated in vacuo. The residue was purified by column chromatography (petroleum ether:EtOAc, 30:1) to give the title compound as a colorless oil (23 mg, 92%).

Workup

  1. stirringThe reaction mixture was stirred at room temperature for a further 1 h
  2. extractionextracted with EtOAc
  3. washThe combined organic extracts were washed with water and brine
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customThe residue was purified by column chromatography (petroleum ether:EtOAc, 30:1)

Sources & evidence

ORD record
ord-033f2d46289c4bea890211ba8791080c
Source dataset
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09249085B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes