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 three 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