1-Methylimidazole → 1-O-(p-toluenesulfonyl)-2-methylene-1,3-propanediol

Beteiligte Stoffe

Reaktionsschritte

2-Methylene-1,3-propanediol (480 mg) and dibutyltinoxide (1,7 g) were dissolved in toluene (30 ml) and the resulting suspension was refluxed for 1 hour eliminating water with the help of a Dean-Stark apparatus. The flask was cooled down to room temperature and then, N-methyl-imidazol (797 ml) and tosyl chloride (1,56 g) were added. After 15 minutes stirring, the reaction crude was directly purified by column chromatography (hexane-ethyl acetate v/v from 7:1 to 1:1). The title compound (428 mg) was obtained as a white solid.

Herkunft & Nachweise