反应详情

A 500 mL reaction flask was charged with 34.5 g of 2,3-dichlorobutadiene and 27.5 g of maleic anhydride. 200 mL of toluene was added, along with a small amount of BHT (0.5 g). The solution was heated to reflux until the reaction was complete. The toluene was removed and the product recrystallized from ethyl acetate/hexanes to give 38.25 g (61.8%) of 4,5-dichlorotetrahydrophthalic anhydride.

1. customA 500 mL reaction flask
2. temperatureThe solution was heated
3. temperatureto reflux until the reaction
4. customThe toluene was removed
5. customthe product recrystallized from ethyl acetate/hexanes