反应详情

Into a dichloromethane solution of a poly(propyleneimine)dendrimer (1.0 g, 3.2 mmol, made by Aldrich Corporation) of the first generation (n=1 in FIG. 8) containing a catalytic quantity of triethylamine, a solution of trans-cinnamyl chloride (0.63 g, 3.7 mmol, made by Aldrich Corporation) was dropped, and the resultant solution was stirred at 0° C. for one hour and then at room temperature for 40 hours. This reaction liquid was diluted with dichloromethane, was cleaned sequentially with ion-exchange water, an aqueous solution of sodium carbonate and an aqueous solution of sodium chloride, and was dried with magnesium sulfate. After filtration, dichloromethane was removed by an evaporator. The crude product was dialyzed and reprecipitated repetitively for three times, and was dried under a reduced pressure. Then, a white solid was obtained.

1. customThis reaction liquid
2. dry with materialan aqueous solution of sodium carbonate and an aqueous solution of sodium chloride, and was dried with magnesium sulfate
3. filtrationAfter filtration, dichloromethane
4. customwas removed by an evaporator
5. customThe crude product was dialyzed
6. customreprecipitated repetitively for three times
7. customwas dried under a reduced pressure
8. customThen, a white solid was obtained