1H-1,2,4-Triazole → 3,3-Dimethyl-1-(1H-1,2,4-triazol-1-yl)-2-butanone

Participants

Reaction Steps

138 g (2 mol) of 1,2,4-triazole were added in portions to 276.4 g (2 mol) of ground potassium carbonate and 269.2 g (2 mol) of α-chloropinacolin in 500 ml of acetone at room temperature, whereupon the internal temperature rose to the boiling point. The mixture was stirred under reflux for 5 hours and then cooled to room temperature. The reaction mixture was filtered and the filtrate was concentrated by distilling off the solvent in vacuo. After adding benzine, the oily residue crystallised. 240.8 g (72% of theory) of 3,3-dimethyl-1-(1,2,4-triazol-1-yl)-butan-2-one of melting point 62°-64° C. were obtained. ##STR103##

Provenance & Evidence