Cyclopropylamine → HCID 67432850, compound

HRID 2036612Notes

Reaction equation

HRID 2036612 reaction equation
Br[C:2]1[C:14]([N+:15]([O-:17])=[O:16])=[CH:13][CH:12]=[CH:11][C:3]=1[C:4]([NH:6][C:7]([CH3:10])([CH3:9])[CH3:8])=[O:5].[CH:18]1([NH2:21])[CH2:20][CH2:19]1>C1COCC1.CCOC(C)=O>[C:7]([NH:6][C:4](=[O:5])[C:3]1[CH:11]=[CH:12][CH:13]=[C:14]([N+:15]([O-:17])=[O:16])[C:2]=1[NH:21][CH:18]1[CH2:20][CH2:19]1)([CH3:10])([CH3:9])[CH3:8]

Participants

5

Reactant 2

HCID 69828CyclopropylamineHCID 674309942-bromo-N-tert-butyl-3-nitrobenzamide

Product 1

HCID 67432850HCID 67432850, compound

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of 2-bromo-N-tert-butyl-3-nitrobenzamide (460 mg, 1.52 mmol) and cyclopropanamine (350 μL, 4.55 mmol) in THF (10 mL) was heated at 60° C. for 18 h. The reaction mixture was diluted with EtOAc, washed with water, brine, dried over magnesium sulfate, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel using EtOAC:DCM (1:1) as eluent to give N-tert-butyl-2-(cyclopropylamino)-3-nitrobenzamide: 1H NMR (400 MHz, CDCl3) δ 8.26 (1H, br), 8.09 (1H, dd, J=8.0, 4.0 Hz), 7.57 (1H, d, J=8.0 Hz), 6.72 (1H, t, J=8.0 Hz), 5.81 (1H, br), 2.98-2.92 (1H, m), 1.49 (9H, s), 0.82-0.76 (2H, m), 0.58-0.52 (2H, m); LC-MS (ESI) m/z 278.2 [M+H]+.

Workup

  1. washwashed with water, brine
  2. dry with materialdried over magnesium sulfate
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by flash chromatography on silica gel using EtOAC

Sources & evidence

ORD record
ord-89f11ad4778a46868bbd34d3bcb46ef6
Source dataset
uspto-grants-2013_11
Patent number
US08575183B2

Reaction notes

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