Hydrochloric Acid → N-(2-phenylethyl)heptan-1-amine

HRID 2112058Notes

Reaction equation

HRID 2112058 reaction equation
[CH2:1]([NH:8][C:9](=O)[CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH3:7].B.CSC.Cl>C1COCC1>[C:11]1([CH2:10][CH2:9][NH:8][CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH3:7])[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 5152095HCID 5152095, compoundHCID 12423031(Dimethyl sulfide)trihydroboron

Product 1

HCID 17206199N-(2-phenylethyl)heptan-1-amineYield 70.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

N-Heptyl-2-phenylacetamide (0.886 g, 3.797 mmol) was dissolved in THF (10 ml) and was cooled to 0° C. under argon atmosphere. (Methylthio)methane compound with borane (1:1) (0.721 g, 9.492 mmol) was added and the mixture was refluxed for 5 hours. After the mixture was cooled to room temperature, 5 ml HCl (10%) was gently added and the mixture was stirred overnight. The solvent was removed by evaporation. EtOAc (20 ml) was added and the organic phase was washed with K2CO3 (2M, 2×20 ml). The crude was purified by flash chromatography (started with isocratic heptane/EtOAc 50/50 and then the EtOAc concentration was increased to 100%, (silica gel 60 0.004-0.063 mm). The product containing fractions were pooled and the EtOAc was removed by evaporation to give 0.584 g of N-(2-phenylethyl)heptan-1-amine (yield 70.1%).

Workup

  1. temperaturethe mixture was refluxed for 5 hours
  2. temperatureAfter the mixture was cooled to room temperature
  3. customThe solvent was removed by evaporation
  4. additionEtOAc (20 ml) was added
  5. washthe organic phase was washed with K2CO3 (2M, 2×20 ml)
  6. customThe crude was purified by flash chromatography (
  7. concentrationthe EtOAc concentration
  8. temperaturewas increased to 100%, (silica gel 60 0.004-0.063 mm)
  9. additionThe product containing fractions
  10. customthe EtOAc was removed by evaporation

Sources & evidence

ORD record
ord-094689318efd42cf85f0ea8b9af4e3b5
Source dataset
uspto-grants-2009_04
Patent number
US07521461B2

Reaction notes

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