Lithium hydroxide, monohydrate → HCID 57995472, compound

HRID 1512450Notes

Reaction equation

HRID 1512450 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]([CH2:30][C:31]2[CH:36]=[CH:35][C:34]([F:37])=[CH:33][CH:32]=2)[C:25]([O:27]CC)=[O:26])[CH:5]=[C:6]([C:14]2[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=2)[C:7]=1[O:8][CH2:9][C:10]([F:13])([F:12])[F:11].O.[OH-].[Li+]>CO.C1COCC1.O>[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]([CH2:30][C:31]2[CH:32]=[CH:33][C:34]([F:37])=[CH:35][CH:36]=2)[C:25]([OH:27])=[O:26])[CH:5]=[C:6]([C:14]2[CH:19]=[CH:18][C:17]([C:20]([F:21])([F:22])[F:23])=[CH:16][CH:15]=2)[C:7]=1[O:8][CH2:9][C:10]([F:12])([F:11])[F:13]

Participants

4

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 57995504HCID 57995504, compound

Product 1

HCID 57995472HCID 57995472, compoundYield 26.7%

Reagents, catalysts & solvents 1

HCID 21892291Methanol tetrahydrofuran waterSolvent

Procedure

A mixture of ethyl 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-3-(4-fluorophenyl)propanoate (400 mg, 0.719 mmol) and lithium hydroxide monohydrate (0.306 g, 7.29 mmol) in a MeOH/THF/Water solvent mixture (10 ml/10 ml/10 ml) was stirred for 3 h at room temperature. After completion of reaction volatiles were removed under reduced pressure. The residue was diluted with water, acidified with 5% HCl solution and extracted with ethyl acetate (3×50 mL). The combined organic layers were washed with water, dried over Na2SO4, filtered and evaporated under reduced pressure. The residue was purified by Flash Column Chromatography to give 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-3-(4-fluorophenyl)propanoic acid (0.1 g). 1H-NMR (CDCl3, 400 MHz): 7.55-7.78 (m, 4H); 7.42 (s, 1H), 7.18 (s, 1H); 6.92-7.16 (m, 4H); 3.98 (q, 2H); 3.84 (t, 1H); 3.41 (dd, 1H), 3.02 (dd, 1H).

Workup

  1. customAfter completion of reaction volatiles
  2. customwere removed under reduced pressure
  3. additionThe residue was diluted with water
  4. extractionextracted with ethyl acetate (3×50 mL)
  5. washThe combined organic layers were washed with water
  6. dry with materialdried over Na2SO4
  7. filtrationfiltered
  8. customevaporated under reduced pressure
  9. customThe residue was purified by Flash Column Chromatography

Sources & evidence

ORD record
ord-006bf01c98a745f0ad30594f0eb6d10b
Source dataset
uspto-grants-2012_07
Patent number
US08217064B2

Reaction notes

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