Morpholine → 4-(1-(4-Nitrophenyl)ethyl)morpholine

HRID 601020Notes

Reaction equation

HRID 601020 reaction equation
Br[CH:2]([C:4]1[CH:9]=[CH:8][C:7]([N+:10]([O-:12])=[O:11])=[CH:6][CH:5]=1)[CH3:3].C(=O)([O-])[O-].[K+].[K+].[NH:19]1[CH2:24][CH2:23][O:22][CH2:21][CH2:20]1>CN(C=O)C>[N+:10]([C:7]1[CH:8]=[CH:9][C:4]([CH:2]([N:19]2[CH2:24][CH2:23][O:22][CH2:21][CH2:20]2)[CH3:3])=[CH:5][CH:6]=1)([O-:12])=[O:11]

Participants

5

Reactant 3

HCID 8083MorpholineHCID 11430Potassium CarbonateHCID 110206791-(1-Bromoethyl)-4-nitrobenzene

Product 1

HCID 133988034-(1-(4-Nitrophenyl)ethyl)morpholineYield 95.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 1-(1-bromo-ethyl)-4-nitro-benzene (1.24 g, 5.43 mmol), potassium carbonate (2.25 g, 16.3 mmol) and morpholine (1.2 mL, 13.6 mmol) in DMF (10 mL) was stirred at room temperature for 16 h, then evaporated. The residue was suspended in ethyl acetate, washed with water and brine, dried (sodium sulfate) and evaporated to provide 4-[1-(4-nitro-phenyl)-ethyl]-morpholine (1.225 g, 95% yield) as a yellow oil. 1H-NMR (DMSO-d6, 500 MHz) 8.19 (d, 2H), 7.16 (d, 2H), 3.56 (m, 5H), 2.41 (m, 2H), 2.26 (m, 2H), 1.29 (d, 3H) ppm; MS (FIA) 237.2 (M+H); HPLC (Method A) 2.248 min.

Workup

  1. customevaporated
  2. washwashed with water and brine
  3. dry with materialdried (sodium sulfate)
  4. customevaporated

Sources & evidence

ORD record
ord-f4aa02a0c348409f8fd080535183ed74
Source dataset
uspto-grants-2011_03
Patent number
US07902239B2

Reaction notes

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