HCID 14937509, compound → Ethyl 5-phenyl-1H-pyrrole-3-carboxylate

HRID 2197071Notes

Reaction equation

HRID 2197071 reaction equation
Cl[C:2]1[NH:3][C:4]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[CH:5][C:6]=1[C:7]([O:9][CH2:10][CH3:11])=[O:8]>C(O)C.[C].[Pd]>[C:12]1([C:4]2[NH:3][CH:2]=[C:6]([C:7]([O:9][CH2:10][CH3:11])=[O:8])[CH:5]=2)[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1

Participants

4

Reactant 1

HCID 14937509HCID 14937509, compound

Product 1

HCID 10242379Ethyl 5-phenyl-1H-pyrrole-3-carboxylateYield 62%

Reagents, catalysts & solvents 2

HCID 178418390HCID 178418390, compoundCatalystHCID 702EthanolSolvent

Procedure

To a solution (50 mL) of ethyl 2-chloro-5-phenyl-1H-pyrrole-3-carboxylate (8.5 g) in ethanol was added 10% palladium carbon (50% containing water, 0.5 g), and the mixture was stirred under a hydrogen atmosphere at room temperature for 24 hr. The reaction mixture was filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=9:1→1:1) to give the title compound as a colorless solid (yield 4.50 g, 62%).

Workup

  1. filtrationThe reaction mixture was filtered
  2. concentrationthe filtrate was concentrated under reduced pressure
  3. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=9:1→1:1)

Sources & evidence

ORD record
ord-7d14f7271edf49548e98aa10f10b2cbd
Source dataset
uspto-grants-2012_12
Patent number
US08338462B2

Reaction notes

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