Tetrahydrofuran → 2-(Ethyl(1-ethynylcyclohexyl)amino)ethan-1-ol

HRID 270442Notes

Reaction equation

HRID 270442 reaction equation
[CH2:1]([NH:3][CH:4](O)[CH3:5])[CH3:2].C(O[C:11]1([C:17]#[CH:18])[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1)(=O)C.C1C[O:22]CC1>Cl[Cu]>[CH2:1]([N:3]([C:11]1([C:17]#[CH:18])[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1)[CH2:4][CH2:5][OH:22])[CH3:2]

Participants

5

Reactant 3

HCID 8028TetrahydrofuranHCID 78903Cyclohexanol, 1-ethynyl-, 1-acetateHCID 18179409Ethylaminoethanol

Product 1

HCID 223141892-(Ethyl(1-ethynylcyclohexyl)amino)ethan-1-ol

Reagents, catalysts & solvents 1

HCID 62652Cuprous chlorideCatalyst

Procedure

To 1.17 ml (12 mmol) ethylaminoethanol in 8 ml THF were added 29.8 mg (0.3 mmol) CuCl, followed by 1 g (6.02 mmol) 1-ethynylcyclohexyl acetate. The solution was stirred at RT for 3 h, the solvent was removed and the residue dissolved in ether/2M HCl. The phases were separated, and after addition of NaOH (pH 1) to the aqueous phase, it was extracted with ether. The ether phase was dried over Na2SO4 and concentrated. Distillation by Kugelrohr yielded 2-[Ethyl-(1-ethynyl-cyclohexyl)-amino]-ethanol as colorless oil, MS: 196 (MH+).

Workup

  1. customthe solvent was removed
  2. dissolutionthe residue dissolved in ether/2M HCl
  3. customThe phases were separated
  4. additionafter addition of NaOH (pH 1) to the aqueous phase, it
  5. extractionwas extracted with ether
  6. dry with materialThe ether phase was dried over Na2SO4
  7. concentrationconcentrated
  8. distillationDistillation by Kugelrohr

Sources & evidence

ORD record
ord-4b8cec86b6ec498ca02f875dee378575
Source dataset
uspto-grants-2008_11
Patent number
US07449483B2

Reaction notes

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