反応 #431816

反応方程式

toluenesulfonyl isocyanate

dibutyltin dilaurate

→

succinic anhydride

diethanolamine

溶媒

tetrahydrofuran

反応条件

後処理

1. 1
   温度the mixture was heated
2. 2
   温度under reflux for two hours

実験手順

16.1 g of polypropylene glycol (M=480), 65.7 g of anhydrous tetrahydrofuran and 0.22 g of toluenesulfonyl isocyanate were stirred for 15 minutes in a three-necked flask with a capacity of 250 ml. 13 g of tolylene-2,4-diisocyanate and 0.17 g of dibutyltin dilaurate were then added and the mixture was heated under reflux for two hours. 6.9 g of the addition product formed from 1 mol of succinic anhydride and 1 mol of diethanolamine were then added and refluxing was continued for a further two hours. The solution was then diluted with 42.2 g of tetrahydrofuran and 1.95 g of polyoxypropylenediamine (M=420) in 42.2 g of tetrahydrofuran were added dropwise.

出典