反应 #54170

反应方程式

2 -Butoxyethanol

levulinic acid

dibutyl tin dioctoate

→

2-Butoxyethyl Levulinate

溶剂

xylene

反应条件

后处理

1. 1
   其他while collecting 42g water
2. 2
   洗涤Product was washed with sat. NaHCO3 and water
3. 3
   其他dried with anhy
4. 4
   workup.DISTILLATIONMgSO4 and distilled
5. 5
   其他Ester product was collected in fr 2 and 3 120°-131° 1 mm
6. 6
   其他Yield

实验过程

2 -Butoxyethanol (Butyl Cellosolve) 354g (3 mol), 232g (2 mol) levulinic acid and 1.5g dibutyl tin dioctoate were heated with a xylene azeotrope for 24 hours 151°-177° to AN 2.3 while collecting 42g water. Product was washed with sat. NaHCO3 and water, dried with anhy. MgSO4 and distilled. Ester product was collected in fr 2 and 3 120°-131° 1 mm. Yield was 349g, 81%, 96% ester product by gc.

来源