反应详情

A 300 ml reactor, which had been cooled down in dry ice/acetone bath to -20° C., was charged with 111.3 g of fuming sulfuric acid, 9.3 g of paraformaldehyde and 52.8 g of HFIPA, followed by stirring for 20 minutes. After stopping stirring, it was cooled down to room temperature by standing still. With this, the contents were separated into two layers. The organic matter of the upper layer was taken out and then washed with 50 ml of 5% sodium hydrogencarbonate aqueous solution. With this, it was separated into two layers to obtain an organic matter.

1. stirringAfter stopping stirring
2. customWith this, the contents were separated into two layers
3. washwashed with 50 ml of 5% sodium hydrogencarbonate aqueous solution
4. customWith this, it was separated into two layers
5. customto obtain an organic matter