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Place 200mg of 3-sulfolene and 90mg of maleic anhydride in a conical vial contai

ID: 612247 • Letter: P

Question

Place 200mg of 3-sulfolene and 90mg of maleic anhydride in a conical vial containing 250 microliters of dry xylene. Place drying tube filled with CaCl2 on condenser. Heat to reflux at 190 C for 25 minutes then cool. Add 0.5mL tolulene and petroleum ether 0.5-0.75 mL until slight cloudiness remains. Reheat until clear and cool in ice bath. Collect product and wash with 1 mL of petroleum ether. I need to calculate my percent yield and I know my product weight and the formula, I just forget the first part.

Explanation / Answer

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