Morpholine → HCID 70497821, compound

HRID 2408058Notes

Reaction equation

HRID 2408058 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[NH:11][CH:10]([C:15]1[CH:20]=[C:19](Br)[CH:18]=[CH:17][C:16]=1[CH2:22][CH3:23])[CH2:9][C:8]2([CH3:25])[CH3:24])=[O:4].[NH:26]1[CH2:31][CH2:30][O:29][CH2:28][CH2:27]1.Cl.[CH3:33]N(C)CC(O)=O.C(=O)([O-])[O-].[K+].[K+]>CS(C)=O.[Cu]I>[CH2:1]([O:2][C:3]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[NH:11][CH:10]([C:15]1[CH:20]=[C:19]([N:26]3[CH2:31][CH2:30][O:29][CH2:28][CH2:27]3)[CH:18]=[CH:17][C:16]=1[CH2:22][CH3:23])[CH2:9][C:8]2([CH3:25])[CH3:24])=[O:4])[CH3:33]

Participants

7

Reactant 4

HCID 8083MorpholineHCID 11430Potassium CarbonateHCID 75605N,N-Dimethylglycine hydrochlorideHCID 70496808HCID 70496808, compound

Product 1

HCID 70497821HCID 70497821, compoundYield 19.5%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 679Dimethyl SulfoxideSolvent

Procedure

A mixture solution of 2-(5-bromo-2-ethyl-phenyl)-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid methyl ester (1.5 g, 9.1 mmol), morpholine (3.17 mL, 36.4 mmol), copper(I) iodide (1.04 g, 5.5 mmol), N,N-dimethylglycine hydrochloride (1.02 g, 7.3 mmol), and potassium carbonate (3.77 g, 27.3 mmol) in dimethyl sulfoxide (20 mL) was stirred at 120° C. for 12 h. Then the reaction mixture was cooled to room temperature. The reaction mixture was extracted with ethyl acetate (200 mL×2), washed with saturated aqueous ammonium chloride solution (50 mL×3) and brine (50 mL×2), dried over anhydrous sodium sulfate and then concentrated in vacuo and the residue was purified by ISCO combi-flash chromatography (gradient elution, 30-50% ethyl acetate in petroleum ether) to afford 2-(2-ethyl-5-morpholin-4-yl-phenyl)-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (0.6 g, 15%) as a white solid: MS (ESI) M+1=423.1.

Workup

  1. extractionThe reaction mixture was extracted with ethyl acetate (200 mL×2)
  2. washwashed with saturated aqueous ammonium chloride solution (50 mL×3) and brine (50 mL×2)
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customthe residue was purified by ISCO combi-flash chromatography (gradient elution, 30-50% ethyl acetate in petroleum ether)

Sources & evidence

ORD record
ord-1ba8a49495a744b49ec8fdca4d50acc6
Source dataset
uspto-grants-2014_08
Patent number
US08809369B2

Reaction notes

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