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
机构地区:[1]湖南中医药大学药学院,长沙410208 [2]中医药大学
出 处:《中国实用医药》2008年第4期22-23,共2页China Practical Medicine
摘 要:目的优化乙酰阿魏酰氯的合成工艺。方法先以香草醛和乙酸酐等为原料,经Perkin反应合成乙酰阿魏酸,进一步制备乙酰阿魏酰氯。按正交表L9(34)表设计考察乙酰阿魏酸和乙酰阿魏酰氯合成的影响因素,对乙酰阿魏酸合成中反应时间、PEG-400用量及投料比等因素进行优选,同时也考察乙酰阿魏酰氯合成的反应时间、反应温度及乙酰阿魏酸与氯化亚砜的摩尔比等因素对吸收率的影响。结果前者最佳工艺为A1B2C1,后者最佳工艺为A1B2C2,两步总收率达65%。结论该最佳工艺可缩短反应时间,提高生产效率,适合工业生产。Objective To optimise the process of acetylferuloyl chloride. Methods Using vanillin and acetic anhydride ere as raw materials, to synthesize acetyl-ferulic acid through Perkin reaction, finally acetylferuloyl chloride was synthesized. The main factors influenced yield of synthesis acetylferuloyl chloride and acetylferulic acid were evaluated,within synthesis acetylferuloyl chloride such as reaction time,reaction temperature and ratio of acetyl-ferulic acid and SOCl2 and within synthesis acetylferulic acid such as reaction time, the quantity of PEG-400 and material-ratio,by the orthogonal experimental design of L9 (3^4 ) orthogonal design. Results The optimization terms of the process of the former were A1 B2 C1 , and the latter were A1 B2 C2 , the total yield reached 65%. Conclusion The best process could improve efficiency,shorten the reaction time,the experimental method was suitable for industrial production of acetylferuloyl chloride.
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:216.73.216.222