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Water → Benzyl-{2-[4-(3-chloro-4-cyano-phenoxy)-phenyl]-ethyl}-carbamic acid tert-butyl ester

HRID 130720
Notes
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Reaction equation

HRID 130720 reaction equation
[C:1]([O:5][C:6](=[O:24])[N:7]([CH2:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[CH2:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([OH:16])=[CH:12][CH:11]=1)([CH3:4])([CH3:3])[CH3:2].C([O-])([O-])=O.[K+].[K+].[Cl:31][C:32]1[CH:39]=[C:38](F)[CH:37]=[CH:36][C:33]=1[C:34]#[N:35].O>CN(C=O)C>[C:1]([O:5][C:6](=[O:24])[N:7]([CH2:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[CH2:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([O:16][C:38]2[CH:37]=[CH:36][C:33]([C:34]#[N:35])=[C:32]([Cl:31])[CH:39]=2)=[CH:12][CH:11]=1)([CH3:4])([CH3:2])[CH3:3]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 1090002-Chloro-4-fluorobenzonitrileHCID 59717863Benzyl-[2-(4-hydroxy-phenyl)-ethyl]carbamic acid tert-butyl ester

Product 1

HCID 59729914Benzyl-{2-[4-(3-chloro-4-cyano-phenoxy)-phenyl]-ethyl}-carbamic acid tert-butyl esterYield 95.8%

Reagents, catalysts & solvents

1
HCID 6228DimethylformamideSolvent

Procedure

Combine the compound from Example 218 step 2 (692 mg, 2.12 mmol) and K2CO3 (323 mg, 2.33 mmol) in DMF (9 mL), stir the mixture at room temperature for 30 min and then add 2-chloro-4-fluoro-benzonitrile (330 mg, 2.12 mmol), and heat at 100° C. overnight. Cool to ambient temperature and pour into water. Extract the aqueous layer with EtOAc. Dry the organic layer over Na2SO4 and eliminate the solvent. Purify by flash chromatography on silica gel (eluent: EtOAc/hexane 15/85) to obtain the title compound (940 mg, 95%). Electrospray MS M−1 ion=461, 1H-NMR (CDCl3, 400 MHz): 7.57 (d, 1H, J=7.8 Hz), 7.36-7.13 (m, 7H), 7.00-6.85 (m, 4H), 4.44-4.36 (m, 2H), 3.49-3.32 (m, 2H), 2.83-2.73 (m, 2H), 1.51-1.43 (m, 9H).

Workup

  1. extractionExtract the aqueous layer with EtOAc
  2. dry with materialDry the organic layer over Na2SO4
  3. customPurify by flash chromatography on silica gel (eluent: EtOAc/hexane 15/85)

Sources & evidence

ORD record
ord-38316bf226df4a66a0471a9188d7be9a
Source dataset
uspto-grants-2008_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07381719B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes