Methanol → Tert-butyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)propanoate

HRID 332860Notes

Reaction equation

HRID 332860 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[C:10]([O:11][C:12]3[CH:17]=[CH:16][C:15](/[CH:18]=[CH:19]/[C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])=[CH:14][CH:13]=3)=[C:9]([C:27]3[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][CH:28]=3)[S:8][C:7]=2[CH:35]=1.CO>[Pd].C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[C:10]([O:11][C:12]3[CH:17]=[CH:16][C:15]([CH2:18][CH2:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])=[CH:14][CH:13]=3)=[C:9]([C:27]3[CH:28]=[CH:29][C:30]([O:33][CH3:34])=[CH:31][CH:32]=3)[S:8][C:7]=2[CH:35]=1

Participants

5

Reactant 2

HCID 887MethanolHCID 86730644(E)-tert-butyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)acrylate

Product 1

HCID 86730643Tert-butyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)propanoateYield 100%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of (E)-tert-butyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)acrylate (27 mg, 0.06 mmol) in 4:1 MeOH:DCM (2.5 mL) was added palladium on carbon (10% wt., 0.59 mg, 5.53 mol). The reaction was stirred at room temperature under a hydrogen balloon for 12 h after which the reaction was purged with nitrogen and filtered through Celite™. The remaining palldium was washed with DCM (30 mL) and the resulting solution was concentrated in vacuo to afford tert-butyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)propanoate (27 mg, 0.06 mmol, 100% yield) which was used without further purification. LC/MS (m/z, MH+): 491.3.

Workup

  1. customwas purged with nitrogen
  2. filtrationfiltered through Celite™
  3. washThe remaining palldium was washed with DCM (30 mL)
  4. concentrationthe resulting solution was concentrated in vacuo

Sources & evidence

ORD record
ord-3ee2edd6f45e4093bed6b3ed9ec428fe
Source dataset
uspto-grants-2014_11
Patent number
US08877801B2

Reaction notes

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