微波辐照法合成冰片烯和冰片二烯  

Syntheses of Bornylene and Bornadiene Using Microwave Irradiation

作　　者：杨晓琴[1] 宁平[2] 郑云武[1] 黄元波[1] 郑志锋[1] 曾韬[3] 

机构地区：[1]云南省高校生物质化学炼制与合成重点实验室,西南林业大学材料工程学院,云南昆明650224 [2]昆明理工大学环境科学与工程学院,云南昆明650500 [3]南京林业大学化学工程学院,江苏南京210037

出　　处：《南京师大学报（自然科学版）》2016年第2期44-49,共6页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：西南林业大学科研启动基金项目(111402);西南林业大学科技创新基金(C1417);云南省教育厅科学研究基金一般项目(2014Y317);国家自然科学基金(31200452)

摘　　要：以源自蒎烯的2-氯莰烷和2,6-二氯莰烷为原料,采用微波辐照法合成了冰片烯和冰片二烯,结果表明,以叔丁醇钾作消除试剂,N,N’-二甲基甲酰胺作溶剂,微波功率400 W,辐照温度120℃条件下反应60 min,2-氯莰烷和2,6-二氯莰烷可完全转化为冰片烯和冰片二烯,得率分别可达92.1%和94.3%,纯度分别为95.6%和99.9%,该方法操作简单,环境友好,反应时间短且得率高.此外,探讨了2-氯莰烷和2,6-二氯莰烷消去反应的机理,表明该反应是一个双分子消除反应(E2)历程,只能进行顺式消去.Bornylene and bornadiene were synthesized using 2-chlorocamphane and 2,6-dichlorocamphane as raw materials under microwave irradiation. The results showed that the optimum reaction conditions are as follows ： using potassium tert-butoxide as elimination reagent, N, N＇ - dimethyl formamide as solvent, with microwave power of 400 W at microwave temperature of 120% for 60 min, the yields of bornylene and bornadiene can be up to 92.1% and 94.3%, respectively. Microwave method is simple, eco-friendly, and has the advantage of short reaction time and high yields. Moreover, mechanism of 2-chlorocamphane and 2, 6-dichlorocamphane elimination reaction was studied, the result demonstrated that this reaction is a bimolecular elimination reaction （E2） mechanism which only follows the ciselimination.

关 键 词：微波辐照 消去反应 冰片烯 冰片二烯 可再生 

分 类 号：TQ351[化学工程]