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1,2-Dibromoethane → 4-(2-bromoethoxy)-N-[3-(4-tert-butylcyclohexan-1-yl)phenyl]-3-methoxyphenylacetamide

HRID 7058
Notes
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Reaction equation

HRID 7058 reaction equation
[C:1]([CH:5]1[CH2:10][CH2:9][CH:8]([C:11]2[CH:12]=[C:13]([NH:17][C:18](=[O:29])[CH2:19][C:20]3[CH:25]=[CH:24][C:23]([OH:26])=[C:22]([O:27][CH3:28])[CH:21]=3)[CH:14]=[CH:15][CH:16]=2)[CH2:7][CH2:6]1)([CH3:4])([CH3:3])[CH3:2].[Br:30][CH2:31][CH2:32]Br.[OH-].[K+].[OH-].C([N+](CCCC)(CCCC)CCCC)CCC>>[Br:30][CH2:31][CH2:32][O:26][C:23]1[CH:24]=[CH:25][C:20]([CH2:19][C:18]([NH:17][C:13]2[CH:14]=[CH:15][CH:16]=[C:11]([CH:8]3[CH2:9][CH2:10][CH:5]([C:1]([CH3:4])([CH3:2])[CH3:3])[CH2:6][CH2:7]3)[CH:12]=2)=[O:29])=[CH:21][C:22]=1[O:27][CH3:28]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 4

HCID 78391,2-DibromoethaneHCID 14797Potassium HydroxideHCID 2723671Tetrabutylammonium HydroxideHCID 22019581N-[3-(4-tert-Butylcyclohexan-1-yl)phenyl]-4-hydroxy-3-methoxyphenylacetamide

Product 1

HCID 220196274-(2-bromoethoxy)-N-[3-(4-tert-butylcyclohexan-1-yl)phenyl]-3-methoxyphenylacetamide

Conditions

Temperature
50 °C

Procedure

A mixture of N-[3-(4-tert-butylcyclohexan-1-yl)phenyl]-4-hydroxy-3-methoxyphenylacetamide (the compound of Example 20) (1.5 g), 1,2-dibromethane (15 ml), 40% aqueous potassium hydroxide solution (5 ml) and 40% aqueous tetrabutylammonium hydroxide solution (0.5 ml) is stirred at 50° C. for 18 hours. The reaction solution is washed with water, and the organic layer is dried over sodium sulfate, and the solvent is evaporated under reduced pressure. The residue is purified by silica gel column chromatography (eluent: gradient from 0% to 100% hexane/ethyl acetate) to give the desired compound (1.6 g).

Workup

  1. washThe reaction solution is washed with water
  2. dry with materialthe organic layer is dried over sodium sulfate
  3. customthe solvent is evaporated under reduced pressure
  4. customThe residue is purified by silica gel column chromatography (eluent: gradient from 0% to 100% hexane/ethyl acetate)

Sources & evidence

ORD record
ord-c9a05f2f40394d91bbdcb528d65562fd
Source dataset
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07084176B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes