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, the internal temperature rising to the boiling point. The reaction mixture was stirred under reflux for 5 hours and then cooled to room temperature. It was filtered and the filtrate was concentrated by distilling off the solvent in vacuo. After adding benzene, 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.

Provenance & Evidence