Hydrochloric Acid → HCID 21964503, compound

HRID 1824838Notes

Reaction equation

HRID 1824838 reaction equation
[F:1][C:2]1[CH:24]=[CH:23][CH:22]=[C:21]([CH3:25])[C:3]=1[CH2:4][O:5][C:6]1[CH:7]=[C:8]([C:12](=[O:20])[CH2:13][CH2:14][C:15]([O:17]CC)=[O:16])[CH:9]=[CH:10][CH:11]=1.[OH-].[Na+].Cl>C(O)C>[F:1][C:2]1[CH:24]=[CH:23][CH:22]=[C:21]([CH3:25])[C:3]=1[CH2:4][O:5][C:6]1[CH:7]=[C:8]([C:12](=[O:20])[CH2:13][CH2:14][C:15]([OH:17])=[O:16])[CH:9]=[CH:10][CH:11]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 21964545HCID 21964545, compound

Product 1

HCID 21964503HCID 21964503, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of Ethyl 4-(3-(2-Fluoro-6-methylbenzyloxy)phenyl)-4-oxobutyrate (Step D, 8.56 g, 24.9 mmol) in abs ethanol (100 ml) was added 1N NaOH (40 ml) at room temperature. The reaction mixture was stirred for 3 hours, acidified with 1M HCl and concentrated. The residue was taken in chloroform and washed with 0.1M HCl, brine, dried over Na2SO4, filtered and concentrated. The purification was done by flash chromatography on silica gel column (chloroform:methanol 95:5 spiked with acetic acid) to provide the title compound as white solid.

Workup

  1. concentrationconcentrated
  2. washwashed with 0.1M HCl, brine
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe purification

Sources & evidence

ORD record
ord-a8acaf8d748d4f109c4e4964cdb01c39
Source dataset
uspto-grants-2006_05
Patent number
US07045541B2

Reaction notes

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