4-Nitrophenol → 4-(cyclopentyloxy)aniline

HRID 1354663Notes

Reaction equation

HRID 1354663 reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[CH:6][CH:5]=1)([O-])=O.Br[CH:12]1[CH2:16][CH2:15][CH2:14][CH2:13]1.C(=O)([O-])[O-].[K+].[K+].CN(C=O)C>O>[CH:12]1([O:10][C:7]2[CH:8]=[CH:9][C:4]([NH2:1])=[CH:5][CH:6]=2)[CH2:16][CH2:15][CH2:14][CH2:13]1

Participants

6

Reactant 4

HCID 9804-NitrophenolHCID 6228DimethylformamideHCID 8728BromocyclopentaneHCID 11430Potassium Carbonate

Product 1

HCID 64844484-(cyclopentyloxy)aniline

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 4-nitrophenol (63.7 g), bromocyclopentane (68.2 g), potassium carbonate (63.3 g) and DMF (300 ml) was heated at 80° C. for 24 hours. After cooling, it was diluted with water and extracted with ethyl acetate. The organic phase was washed with water, dried over magnesium sulfate and concentrated. The residue was hydrogenated by method B. This resulted in the product with the molecular weight of 177.25 (C11H15NO); MS (ESI): 178 (M+H+).

Workup

  1. temperatureAfter cooling
  2. extractionextracted with ethyl acetate
  3. washThe organic phase was washed with water
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated
  6. customThis resulted in the product with the molecular weight of 177.25 (C11H15NO)

Sources & evidence

ORD record
ord-c882c797c09f42ccb0f8c8c111555f7d
Source dataset
uspto-grants-2007_05
Patent number
US07223788B2

Reaction notes

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