Hydrochloric Acid → HCID 70496542, compound

HRID 2408010Notes

Reaction equation

HRID 2408010 reaction equation
C([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:21]=[C:20]([N:22]3[CH2:27][CH2:26][O:25][CH2:24][CH2:23]3)[CH:19]=[CH:18][C:17]=1[CH3:28])[CH2:10][C:9]2([CH3:30])[CH3:29])=[O:5])C.[OH-].[Na+].Cl>CO.O1CCCC1.O>[CH3:29][C:9]1([CH3:30])[C:8]2[C:13](=[CH:14][CH:15]=[C:6]([C:4]([OH:5])=[O:3])[CH:7]=2)[NH:12][CH:11]([C:16]2[CH:21]=[C:20]([N:22]3[CH2:27][CH2:26][O:25][CH2:24][CH2:23]3)[CH:19]=[CH:18][C:17]=2[CH3:28])[CH2:10]1

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 70497656HCID 70497656, compound

Product 1

HCID 70496542HCID 70496542, compoundYield 80.9%

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
60 °C

Procedure

To a stirred mixture solution of 4,4-dimethyl-2-(2-methyl-5-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (3.2 g, 7.8 mmol) in methanol (50 mL) and tetrahydrofuran (50 mL) was added 30% sodium hydroxide in water (10 mL). The reaction mixture was stirred at 60° C. for 3 h. 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 to afford 4,4-dimethyl-2-(2-methyl-5-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (2.4 g, 80%) as a light white solid which was used for next step without further purification: MS (ESI) M+1=381.1.

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

Sources & evidence

ORD record
ord-aa42628946da471faa7ba0f816f5f092
Source dataset
uspto-grants-2014_08
Patent number
US08809369B2

Reaction notes

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