Acetic Anhydride → N-[5-[[3-[3-[(Dimethylamino)methyl]phenoxy]propyl]amino]-1-methyl-1H-1,2,4-triazol-3-yl]acetamide

HRID 2058727Notes

Reaction equation

HRID 2058727 reaction equation
[CH3:1][N:2]1[C:6]([NH:7][CH2:8][CH2:9][CH2:10][O:11][C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([CH2:18][N:19]([CH3:21])[CH3:20])[CH:13]=2)=[N:5][C:4]([NH2:22])=[N:3]1.[C:23](OC(=O)C)(=[O:25])[CH3:24]>N1C=CC=CC=1>[CH3:20][N:19]([CH2:18][C:14]1[CH:13]=[C:12]([CH:17]=[CH:16][CH:15]=1)[O:11][CH2:10][CH2:9][CH2:8][NH:7][C:6]1[N:2]([CH3:1])[N:3]=[C:4]([NH:22][C:23](=[O:25])[CH3:24])[N:5]=1)[CH3:21]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 137898531-Methyl-N5-[3-[3-[(dimethylamino)methyl]phenoxy]propyl]-1H-1,2,4-triazole-3,5-diamine

Product 1

HCID 21297601N-[5-[[3-[3-[(Dimethylamino)methyl]phenoxy]propyl]amino]-1-methyl-1H-1,2,4-triazol-3-yl]acetamideYield 96.7%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

A mixture of 1-methyl-N5 -[3-[3-[(dimethylamino) methyl]phenoxy]propyl]-1H-1,2,4-triazole-3,5-diamine (1.0 g), acetic anhydride (0.35 g) and pyridine (50 ml) was stirred at 25° for 12 h. The pyridine was removed and the residue was dissolved in ethyl acetate. The organic solution was washed with aqueous sodium carbonate and evaporated to give the title compound as a pale yellow oil (1.1 g). TLC silica, methanol/0.88 ammonia 80:1, Rf 0.49. NMR (CDCl3) 1.42 brs (1H); 2.81 m (1H); 3-3.4 m (3H); 5.34 t (1H); 5.98 t (2H); 6.52 s (3H); 6.65 s (2H); 6.5 m (2H); 7.8 s (6H); 7.5-8.1 m (2H); 7.9 s (3H).

Workup

  1. customThe pyridine was removed
  2. dissolutionthe residue was dissolved in ethyl acetate
  3. washThe organic solution was washed with aqueous sodium carbonate
  4. customevaporated

Sources & evidence

ORD record
ord-72ab70a95be947d785f40c3bc7d168cf
Source dataset
uspto-grants-1982_03
Patent number
US04318913

Reaction notes

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