Production of high value C10C20 products from controllable angelica lactone self-aggregation process
Production of high value C10C20 products from controllable angelica lactone self-aggregation process
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DOI：
10.1016/j.jclepro.2017.06.090
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发表时间：
2017-09
影响因子：
11.1
通讯作者：
Boqiong Lu;Jinlong Li;Guangqiang Lv;Y. Qi;Yingxiong Wang;Xianglin Hou;Yongxing Yang
中科院分区：
文献类型：
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作者：
Boqiong Lu;Jinlong Li;Guangqiang Lv;Y. Qi;Yingxiong Wang;Xianglin Hou;Yongxing Yang
本文主要探讨不同实验因素对当归内酯自聚集过程通过碱催化迈克尔加成合成C10、C15和C20自聚集产物的影响。当归内酯自聚集过程中研究了各种实验因素，包括催化剂类型、温度、时间和催化剂用量。并提出了碳酸盐催化当归内酯自聚集过程的可能机理。结果表明，无水碳酸钾比其他碱催化剂表现出更高的效率和更温和的应用条件。采用无水碳酸钾在不同的实验条件下可以得到不同的主产物。当归内酯二聚体(C10)的最佳条件为10 wt%催化剂、343 K、30 min，二聚体的最大收率为69.26%；当归内酯三聚体(C15)的最佳条件为12 wt%催化剂、333 K、20 min，三聚体的最大收率为49.89%；当归内酯四聚体(C20)的最佳条件为12 wt%催化剂、343 K、60 min，四聚体的最大产率为62.46%。
This paper mainly explores the influence of different experiment factors on the angelica lactone self-aggregation process to synthesize C10, C15and C20self-aggregation products through Michael addition by base catalysis. Various experiment factors including types of catalysts, temperature, time and catalyst amounts are investigated in the angelica lactone self-aggregation process. And the possible mechanism of angelica lactone self-aggregation process catalyzed by carbonate is proposed.The results show that anhydrous potassium carbonate exhibits the higher efficiency and milder application conditions than other base catalysts. The different dominating products could be obtained by using anhydrous potassium carbonate under different experiment conditions. The optimal conditions for the angelica lactone dimer (C10) are 10 wt% catalyst, 343 K and 30 min, and the maximal yield of dimer is 69.26%; the optimal conditions for the angelica lactone trimer (C15) are 12 wt% catalyst, 333 K and 20 min, and the maximal yield of trimer is 49.89%; the optimal conditions for the angelica lactone tretramer (C20) are 12 wt% catalyst, 343 K and 60 min and the maximal yield of tretramer is 62.46%.