Sodium Azide → 2',5-dichloro-2-[3-(2-azidoacetamidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]-benzophenone

Participants

Reaction Steps

To a solution of 2',5-dichloro-2-[3-(2-chloroacetamidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]-benzophenone (1.533 g) in dimethylformamide (15 ml), sodium azide (0.228 g) is added portionwise, and the resultant mixture is stirred at room temperature for 2.25 hours and allowed to stand overnight. The reaction mixture is evaporated under reduced pressure to remove the solvent, and the residue is shaken with chloroform. The organic layer is washed with water, dried and evaporated to remove the chloroform. The residue is washed with ether to give 2',5-dichloro-2-[3-(2-azidoacetamidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]-benzophenone (1.45 g). The yield is 93.2%.

Provenance & Evidence