反应详情

First, 7 ml of methanesulfonic acid was added to 10 g of N-vinylimidazole, and the resultant mixture was stirred for 3 hours at a temperature kept at 0° C. and then added dropwise to diethyl ether cooled with dry ice. The resultant mixture was rapidly filtered by suction using a Nutsche aspirator provided with a glass filter to recover crystals on the glass filter. The crystals were dried to obtain 19.2 g of N-vinylimidazolium methanesulfonate. The yield was 95%, and the melting point was 5° C.

1. customkept at 0° C.
2. filtrationThe resultant mixture was rapidly filtered by suction
3. customprovided with a glass
4. filtrationfilter
5. customto recover crystals on the glass
6. filtrationfilter
7. customThe crystals were dried