Sodium Hydroxide → 1-cyclohexyl-1-hydroxy-6-methoxy-3-phenyl-1H-indene-2-carboxylic acid

HRID 19545

Reaction equation

HRID 19545 reaction equation
C([O:3][C:4]([C:6]1[C:7]([CH:24]2[CH2:29][CH2:28][CH2:27][CH2:26][CH2:25]2)([OH:23])[C:8]2[C:13]([C:14]=1[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[CH:12][CH:11]=[C:10]([O:21][CH3:22])[CH:9]=2)=[O:5])C.[OH-].[Na+]>C1COCC1.C(O)C>[CH:24]1([C:7]2([OH:23])[C:8]3[C:13](=[CH:12][CH:11]=[C:10]([O:21][CH3:22])[CH:9]=3)[C:14]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)=[C:6]2[C:4]([OH:5])=[O:3])[CH2:25][CH2:26][CH2:27][CH2:28][CH2:29]1

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 116397521-cyclohexyl-1-hydroxy-6-methoxy-3-phenyl-1H-indene-2-carboxylic acid ethyl ester

Product 1

HCID 115886351-cyclohexyl-1-hydroxy-6-methoxy-3-phenyl-1H-indene-2-carboxylic acidYield 80.7%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

1-Cyclohexyl-1-hydroxy-6-methoxy-3-phenyl-1H-indene-2-carboxylic acid ethyl ester (20 mg, 0.051 mmol) prepared in Example 6 was dissolved in THF, and an excess amount of sodium hydroxide dissolved in aqueous ethanol was added thereto in such a way not to cause layer separation. The mixture was stirred for 24 hrs at RT, and the pH was adjusted to 3˜4 using 2N hydrochloric acid. The resulting mixture was extracted with ethyl acetate. The organic layer was separated, dried over anhydrous MgSO4 and concentrated under a reduced pressure, to obtain 15 mg of the titled compound (yield: 80%).

Workup

  1. additionwas added
  2. customlayer separation
  3. extractionThe resulting mixture was extracted with ethyl acetate
  4. customThe organic layer was separated
  5. dry with materialdried over anhydrous MgSO4
  6. concentrationconcentrated under a reduced pressure

Sources & evidence

ORD record
ord-1c003512fe3e4c9f94c490f9ac318324
Source dataset
uspto-grants-2010_06
Patent number
US07745439B2

Linked notes

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