Sodium Hydroxide → 6-Chloro-7-(4-(3-phenylcyclohexylcarbamoyl)phenoxy)chroman-4-carboxylic acid

HRID 1021522Notes

Reaction equation

HRID 1021522 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[O:12][C:13]1[CH:18]=[CH:17][C:16]([C:19](=[O:33])[NH:20][CH:21]3[CH2:26][CH2:25][CH2:24][CH:23]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[CH2:22]3)=[CH:15][CH:14]=1)[O:8][CH2:7][CH2:6][CH:5]2[C:34]([O:36]CC)=[O:35].[OH-].[Na+]>C1COCC1.C(O)C>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[O:12][C:13]1[CH:14]=[CH:15][C:16]([C:19](=[O:33])[NH:20][CH:21]3[CH2:26][CH2:25][CH2:24][CH:23]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[CH2:22]3)=[CH:17][CH:18]=1)[O:8][CH2:7][CH2:6][CH:5]2[C:34]([OH:36])=[O:35]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 67080631Ethyl 6-chloro-7-(4-(3-phenylcyclohexylcarbamoyl)phenoxy)chroman-4-carboxylate

Product 1

HCID 582446336-Chloro-7-(4-(3-phenylcyclohexylcarbamoyl)phenoxy)chroman-4-carboxylic acidYield 100%

Reagents, catalysts & solvents 1

HCID 21873804Tetrahydrofuran ethanolSolvent

Procedure

To a solution of ethyl 6-chloro-7-(4-(3-phenylcyclohexylcarbamoyl)phenoxy)chroman-4-carboxylate (58 mg, 0.11 mmol) in 3:1 THF/ethanol (1 ml) was added 1M sodium hydroxide (228 μl, 0.23 mmol), and the reaction was stirred for 16 hours at ambient temperature. The reaction was concentrated and then acidified with 1M HCl and extracted twice with EtOAc. The combined organic layers were washed with saturated sodium chloride, dried over anhydrous sodium sulfate, filtered, and concentrated to yield 55 mg of the title compound (100% yield). MS (apci) m/z=506.1 (M+H).

Workup

  1. concentrationThe reaction was concentrated
  2. extractionextracted twice with EtOAc
  3. washThe combined organic layers were washed with saturated sodium chloride
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-ab2934e8d9c04a0cbf776c30757b1948
Source dataset
uspto-grants-2014_05
Patent number
US08716498B2

Reaction notes

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