N,N-bis(3-aminopropyl)methylamine → N1-Methyl-N3-(3-methyl-4-nitrophenyl)-N1-{3-[(3-methyl-4-nitrophenyl)amino]propyl}-1,3-propanediamine

HRID 68177

Reaction equation

F[C:2]1[CH:3]=[CH:4][C:5]([N+:9]([O-:11])=[O:10])=[C:6]([CH3:8])[CH:7]=1.C(=O)([O-])[O-].[Na+].[Na+].[CH3:18][N:19]([CH2:24][CH2:25][CH2:26][NH2:27])[CH2:20][CH2:21][CH2:22][NH2:23]>C1(C)C=CC=CC=1>[CH3:18][N:19]([CH2:24][CH2:25][CH2:26][NH:27][C:2]1[CH:3]=[CH:4][C:5]([N+:9]([O-:11])=[O:10])=[C:6]([CH3:8])[CH:7]=1)[CH2:20][CH2:21][CH2:22][NH:23][C:2]1[CH:3]=[CH:4][C:5]([N+:9]([O-:11])=[O:10])=[C:6]([CH3:8])[CH:7]=1

Participants

Conditions

Temperature: 100 °C

Procedure

To 5-fluoro-2-nitrotoluene (50.0 g, 0.32 mol) was added sodium carbonate (17.1 g, 0.16 mol) at 60° C. 3,3′-Diamino-N-methyldipropylamine (23.7 g, 0.16 mol) was then carefully added dropwise (exothermic reaction). The resulting mixture was heated at 100° C. for 12 hours. 100 ml toluene were added to the cooled reaction mixture causing the inorganic salts to precipitate, which were filtered off. The organic phase was then concentrated down under vacuum in a rotovap to afford the product as a residue in the form of a yellow orange oil. Yield: 52.5 g (78.4%); 1H-NMR (400 MHz, DMSO-d6): δ [ppm]=1.71 (m, 4H); 2.18 (s, 3H); 2.40 (m, 4H); 2.55 (s, 6H); 3.17 (m, 4H); 6.45 (s, 2H); 6.48 (d, 2H); 7.08 (br., 2×NH); 7.92 (d, 2H).

Workup

custom(exothermic reaction)
customto precipitate
filtrationwhich were filtered off
concentrationThe organic phase was then concentrated down under vacuum in a rotovap
customto afford the product as a residue in the form of a yellow orange oil

Sources & evidence

ORD record: ord-727ba28406384fee9d438a866f21cfd8
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08821592B1

Linked notes

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