Hydrochloric Acid → 6-Chloro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid

HRID 2045386Notes

Reaction equation

HRID 2045386 reaction equation
C[O:2][C:3]([C:5]1[CH:6]=[C:7]([Cl:29])[CH:8]=[C:9]2[C:14]=1[NH:13][CH:12]([C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([N:21]3[CH2:26][CH2:25][O:24][CH2:23][CH2:22]3)[CH:16]=1)[C:11]([CH3:28])([CH3:27])[CH2:10]2)=[O:4].[OH-].[Na+].Cl>CO.O1CCCC1.O>[Cl:29][C:7]1[CH:8]=[C:9]2[C:14](=[C:5]([C:3]([OH:4])=[O:2])[CH:6]=1)[NH:13][CH:12]([C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([N:21]3[CH2:22][CH2:23][O:24][CH2:25][CH2:26]3)[CH:16]=1)[C:11]([CH3:28])([CH3:27])[CH2:10]2

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 674427946-Chloro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid methyl ester

Product 1

HCID 534921136-Chloro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-8-carboxylic acidYield 90%

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
70 °C

Procedure

To a stirred mixture solution of 6-chloro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid methyl ester (400 mg, 1.0 mmol) in methanol (15.0 mL) and tetrahydrofuran (15.0 mL) was added 50% sodium hydroxide in water (2.0 mL). The reaction mixture was stirred at 70° C. for 6 hours. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×100 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water) afforded 6-chloro-3,3-dimethyl-2-(3-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid (360 mg, 90%) as a light yellow solid: LC/MS m/e calcd for C22H25ClN2O3 (M+H)+: 401.91, observed: 401.1.

Workup

  1. extractionextracted with ethyl acetate (2×100 mL)
  2. washwashed with water
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customPurification by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water)

Sources & evidence

ORD record
ord-4d7920c1adf143b09c392058d687ea8b
Source dataset
uspto-grants-2013_11
Patent number
US08586747B2

Reaction notes

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