摘要
以Li OH·H_2O为催化剂,由柠檬醛与丙酮Aldol缩合合成了假性紫罗酮;考查催化剂用量、温度、反应时间、柠檬醛与丙酮配比对反应的影响,以及催化剂的重复使用率。结果表明,最佳工艺条件是n(柠檬醛)/n(丙酮)为1∶7,催化剂用量相对于柠檬醛的60%(mol),反应温度45℃,反应时间6 h,转化率可达96.23%,催化剂可重复使用。
In this paper, with LiOH·H2O as catalyst, pseudoionone was synthesized by the condensation of citral with acetone. The effects of the amount of catalyst, temperature, reaction time, citral and acetone ratio on the reaction and the catalyst were studied. The optimized conditions were n（citral）/ n（acetone） of 1： 7, the amount of catalyst with respect to 30%（mol） citral, the reaction temperature 45℃, reaction time 6 h, the conversion rate of 96.23%. The catalyst could be reused.
出处
《广州化学》
CAS
2016年第4期51-55,共5页
Guangzhou Chemistry
