3-Nitroaniline → HCID 90052103, compound

HRID 2284672Notes

Reaction equation

HRID 2284672 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][C:10](=O)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[N+:14]([C:17]1[CH:18]=[C:19]([CH:21]=[CH:22][CH:23]=1)[NH2:20])([O-:16])=[O:15].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(Cl)Cl.C(OCC)(=O)C.C(O)(=O)C>[N+:14]([C:17]1[CH:18]=[C:19]([NH:20][CH:10]2[CH2:11][CH2:12][N:8]([C:6]([O:5][C:1]([CH3:4])([CH3:3])[CH3:2])=[O:7])[CH2:9]2)[CH:21]=[CH:22][CH:23]=1)([O-:16])=[O:15]

Participants

8

Reactant 4

HCID 74233-NitroanilineHCID 471360Tert-butyl 3-oxopyrrolidine-1-carboxylateHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydride

Product 1

HCID 90052103HCID 90052103, compoundYield 57.5%

Reagents, catalysts & solvents 3

HCID 176Acetic AcidSolventHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 1-(tert-butoxycarbonyl)-3-pyrrolidinone (220 mg) and 3-nitroaniline (164 mg) in methylene chloride (3 mL), sodium triacetoxyborohydride (375 mg) and acetic acid (67 μL) were added at room temperature, and the mixture was stirred at the same temperature for 10 hours. To the reaction mixture, ethyl acetate and saturated aqueous sodium hydrogencarbonate were added. The organic layer was separated, washed with saturated aqueous sodium chloride, and then dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent, 100 to 50% hexane in ethyl acetate) to obtain tert-butyl 3-((3-nitrophenyl)amino)pyrrolidine-1-carboxylate (C23, 210 mg).

Workup

  1. customThe organic layer was separated
  2. washwashed with saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous sodium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (eluent, 100 to 50% hexane in ethyl acetate)

Sources & evidence

ORD record
ord-12f3c4c44bc54807ac97d33a1b630bef
Source dataset
uspto-grants-2015_09
Patent number
US09145415B2

Reaction notes

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