Methyl 3-[(phenylmethyl)oxy]-5-[(3S)-tetrahydrofuran-3-yloxy]benzoate → Methyl 3-hydroxy-5-{[(3S)-oxolan-3-yl]oxy}benzoate

HRID 1990241Notes

Reaction equation

HRID 1990241 reaction equation
C1(C[O:8][C:9]2[CH:10]=[C:11]([CH:16]=[C:17]([O:19][C@H:20]3[CH2:24][CH2:23][O:22][CH2:21]3)[CH:18]=2)[C:12]([O:14][CH3:15])=[O:13])C=CC=CC=1>C1COCC1.C(O)C.[Pd]>[OH:8][C:9]1[CH:10]=[C:11]([CH:16]=[C:17]([O:19][C@H:20]2[CH2:24][CH2:23][O:22][CH2:21]2)[CH:18]=1)[C:12]([O:14][CH3:15])=[O:13]

Participants

5

Reactant 1

HCID 59127128Methyl 3-[(phenylmethyl)oxy]-5-[(3S)-tetrahydrofuran-3-yloxy]benzoate

Product 1

HCID 59127189Methyl 3-hydroxy-5-{[(3S)-oxolan-3-yl]oxy}benzoateYield 75.7%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

Methyl 3-[(phenylmethyl)oxy]-5-[(3S)-tetrahydrofuran-3-yloxy]benzoate (25.0 g, 76.2 mmol) was dissolved in THF (150 mL) and ethanol (150 mL). 10% Palladium on carbon (30 mg) was added and the mixture placed under a hydrogen atmosphere and left to stir at RT until the reaction was complete. The catalyst was removed by filtration through diatomaceous earth and the filtrate was concentrated in vacuo to give an orange oil which crystallised on standing. The solid was filtered off and washed with diethyl ether to give the desired product as a white solid (13.75 g).

Workup

  1. waitleft
  2. customThe catalyst was removed by filtration through diatomaceous earth
  3. concentrationthe filtrate was concentrated in vacuo
  4. customto give an orange oil which
  5. customcrystallised
  6. filtrationThe solid was filtered off
  7. washwashed with diethyl ether

Sources & evidence

ORD record
ord-efafb63dd7414ab7ab960c51b32987ee
Source dataset
uspto-grants-2010_01
Patent number
US07642259B2

Reaction notes

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