Sodium Azide → 3,5-Dimethyl 1-(3-azidopropyl)-1H-pyrazole-3,5-dicarboxylate

Participants

Reaction Conditions

Reaction Steps

A solution of 5-1 (1.0 g, 3.45 mmol) in 10 ml DMSO was treated with NaN3 (0.883 g, 13.8 mmol) and mixture stirred at 25° C. for 5 h. Next, the reaction mixture was diluted with 100 ml of H2O and then extracted with ethyl acetate (3×100 ml). The combined organic extracts were washed with water (2×100 ml) and brine (1×100 ml), dried over Na2SO4 and evaporated to give 5-2 as a colorless oil.

Provenance & Evidence