反应详情

An addition product of dimethyl sulfate and dimethylformamide is prepared according to the method of Example 3. To 0.5 mole of this product is added a mixture of 59 grams (0.25 mole) of sodium 2-acrylamido-2-methylpropanesulfonate, 0.1 gram of p-methoxyphenol and 500 ml. of benzene. The mixture is heated under reflux, with stirring, for 3 hours, after which the benzene is evaporated under vacuum. The remaining solid is recrystallized from a benzene-cyclohexane mixture to yield the desired methyl 2-acrylamido-2-methylpropanesulfonate.

1. temperatureThe mixture is heated
2. temperatureunder reflux
3. customafter which the benzene is evaporated under vacuum
4. customThe remaining solid is recrystallized from a benzene-cyclohexane mixture