反応 #2198130

反応方程式

isobutylvinylether

acrolein

→

DHIBP

収率 88.0%

反応条件

後処理

1. 1
   その他the inside of the reactor was purged with nitrogen
2. 2
   温度The pressure was increased to 3 MPa with nitrogen and reaction
3. 3
   workup.DISTILLATIONThe reaction solution was subjected to distillation

実験手順

In a 50 L-volume autoclave made of stainless-steel, 16.22 kg of isobutylvinylether (IBVE), 6.97 kg of acrolein (ACR) and 0.08 kg of di-t-butylhydroxytoluene (BHT) were placed and the inside of the reactor was purged with nitrogen. The pressure was increased to 3 MPa with nitrogen and reaction was performed at 135° C. for 16 hours. The yield of 3,4-dihydro-2-isobutoxy-2H-pyran (DHIBP) was 94% (with ACR used as standard). The reaction solution was subjected to distillation, to thereby obtain 17.1 kg of DHIBP (20 kPa/120° C.).

出典