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

HRID 1021532Notes

Reaction equation

HRID 1021532 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:31])[NH:20][CH:21]3[CH2:24][CH:23]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)[CH2:22]3)=[CH:15][CH:14]=1)[O:8][CH2:7][CH2:6][CH:5]2[C:32]([O:34]CC)=[O:33].[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:31])[NH:20][CH:21]3[CH2:22][CH:23]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)[CH2:24]3)=[CH:17][CH:18]=1)[O:8][CH2:7][CH2:6][CH:5]2[C:32]([OH:34])=[O:33]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 67080785Ethyl 6-chloro-7-(4-(3-phenylcyclobutylcarbamoyl)phenoxy)chroman-4-carboxylate

Product 1

HCID 446011876-Chloro-7-(4-(3-phenylcyclobutylcarbamoyl)phenoxy)chroman-4-carboxylic acidYield 82.5%

Reagents, catalysts & solvents 1

HCID 21873804Tetrahydrofuran ethanolSolvent

Procedure

To a solution of ethyl 6-chloro-7-(4-(3-phenylcyclobutylcarbamoyl)phenoxy)chroman-4-carboxylate (0.086 g, 0.17 mmol) in 3:1 THF/ethanol (4 ml) was added 1M sodium hydroxide (0.36 ml, 0.36 mmol), and the reaction was stirred overnight. The reaction was concentrated, taken up in water, acidified with 1M hydrochloric acid, and extracted twice with EtOAc. The combined organic layers were washed with saturated sodium chloride, dried over Na2SO4, filtered, and concentrated to yield 67 mg of the title compound (82% yield).

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 Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-d57afa9bdefe4e45a6d6050f4c050d89
Source dataset
uspto-grants-2014_05
Patent number
US08716498B2

Reaction notes

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