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Tert-butyl 4-(2-nitrophenyl)-2-(5-phenylpyridine-3-carboxamido)benzoate → Tert-butyl 4-(2-aminophenyl)-2-(5-phenylpyridine-3-carboxamido)benzoate

HRID 454749
Notes
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Reaction equation

HRID 454749 reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[C:10]1[CH:22]=[CH:21][C:13]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])=[C:12]([NH:23][C:24]([C:26]2[CH:27]=[N:28][CH:29]=[C:30]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[CH:31]=2)=[O:25])[CH:11]=1)([O-])=O>C(Cl)(Cl)Cl.CO.[C].[Pd]>[NH2:1][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[C:10]1[CH:22]=[CH:21][C:13]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])=[C:12]([NH:23][C:24]([C:26]2[CH:27]=[N:28][CH:29]=[C:30]([C:32]3[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=3)[CH:31]=2)=[O:25])[CH:11]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 1

HCID 58508723Tert-butyl 4-(2-nitrophenyl)-2-(5-phenylpyridine-3-carboxamido)benzoate

Product 1

HCID 58508762Tert-butyl 4-(2-aminophenyl)-2-(5-phenylpyridine-3-carboxamido)benzoateYield 83.6%

Reagents, catalysts & solvents 3

HCID 178418390HCID 178418390, compoundCatalystHCID 887MethanolSolventHCID 6212
Chloroform
Solvent

Procedure

To a solution mixture of tert-butyl 4-(2-nitrophenyl)-2-(5-phenylpyridine-3-carboxamido)benzoate (0.28 g) in chloroform (3.0 mL) and methanol (2.0 mL), 10% palladium-carbon (0.13 g) was added, followed by stirring under a hydrogen atmosphere at room temperature for 5 hours and 40 minutes. The insoluble substance was removed by filtration, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography [eluent: 100-90% chloroform/methanol] to obtain 0.22 g of tert-butyl 4-(2-aminophenyl)-2-(5-phenylpyridine-3-carboxamido)benzoate as a light yellow solid.

Workup

  1. additionwas added
  2. customThe insoluble substance was removed by filtration
  3. customthe solvent was evaporated under reduced pressure
  4. customThe obtained residue was purified by silica gel column chromatography [eluent: 100-90% chloroform/methanol]

Sources & evidence

ORD record
ord-378abf5f2eb342c7a613c2efb18b868e
Source dataset
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08492582B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes