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

HRID 325705Notes

Reaction equation

HRID 325705 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-94d8bf25295e465ebdd9b286e8b04601
Source dataset
uspto-grants-1984_04
Patent number
US04442110

Reaction notes

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