检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:皮少锋[1] 胡铁[1,2] 王烨[1] 高海丽[1] 孙汉洲[1] 黎继烈[1]
机构地区:[1]经济林培育与保护省部共建教育部重点实验室(中南林业科技大学),湖南长沙410004 [2]广州航海学院,广东广州410208
出 处:《食品与机械》2014年第3期190-193,193+192,共4页Food and Machinery
基 金:国家林业局948项目(编号:2011-4-17)
摘 要:优化假紫罗兰酮制备9,10-环亚甲基假紫罗兰酮的工艺条件,并对该反应机理进行探讨。以自制的假紫罗兰酮为原料,经过锌卡宾环甲基化制备9,10-环亚甲基假紫罗兰酮,分别考察物料摩尔比、溶剂比、反应温度、反应时间对9,10-环亚甲基假紫罗兰酮收率的影响。结果表明,混合溶剂中V二氯甲烷∶V乙醚=4∶1,物料摩尔比n假紫罗兰酮∶n锌铜偶:n二碘甲烷=1∶3∶3,在35℃温度下,反应6h,9,10-环亚甲基假紫罗兰酮收率为74.2%。The reaction mechanism and technological conditions of synthetizing 9,10-cyclomethylene pseudoionones from pseudoionones was discussed. 9,10-eyclomethylene pseudoionones was combined by zinc carving ring methy with homemade pseudoionones as raw material. The reaction factors were investigated that influence the yield of 9,10-Cyclomethylene Pseudoionones such as material ratio, solvent ratio, reaction temperature and reaction time, and the optimal reac- tion conditions were obtained. The results showed that, the ratio of dichloromethane to ether 4 : 1, the mole ratio of pseudoionone, Zinc-Copper Couple and diiodomethane is 1 : 3 : 3, and then reacting for 6 h at 35 ℃, the yield of 9, 10-cyclomethylene pseudoionones reached 74.2%.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:3.144.154.109