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:李孝琼[1] 张正[1] 杨盟辉[1] 段远富[1]
机构地区:[1]中国人民解放军61699部队
出 处:《化学工程师》2011年第10期68-69,共2页Chemical Engineer
摘 要:以芳香族羧酸和乙醇为原料,甲磺酸为催化剂,通过酯化反应合成了一系列芳香族酯类化合物。考察了醇酸摩尔比、反应时间、催化剂的量、带水剂等条件对反应的影响,确定了反应的最佳条件:醇酸摩尔比为6∶1,反应时间6h,催化剂20(mol)%,环己烷为带水剂,产率可达85%-96%。产品经红外光谱表征为目标化合物。A series of aromatic esters were synthesized with aromatic carboxylic acids and ethanol as raw materials,methanesulfonic acid as catalyst.The synthesis conditions were explored,and the optimal conditions were determined as follows: the molar ratio of aromatic carboxylic acids to ethanol was 6∶1,reaction time was 6h,the amount of catalyst was 20(mol)%,cyclohexane as water carrier.With above conditions,the yield of products was 85%~95%.The structure of the target compound was confirmed by IR spectrum.
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:216.73.216.20