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
出 处:《广州化工》2017年第11期53-54,79,共3页GuangZhou Chemical Industry
摘 要:呋喃为最简单的含氧五元杂环化合物,具芳环性质,可发生卤化、硝化、磺化等亲电取代反应,主要用于有机合成或用作溶剂,常作为合成其他复杂有机物的起始原料。以1,4-丁烯二醇为原料,在氯化亚铜和TEMPO的催化下,在溶剂N,N-二甲基甲酰胺中加热通氧反应得到呋喃,含量和收率均较高。本研究中催化剂及溶剂可循环利用,实现连续加料反应,中途无需停止反应。Furan is the simplest oxygen- containing five- membered heterocyclic compound, with aromatic ring properties, it can be used in occur halogenation, nitrification, sulfonation and other electrophilic substitution reaction, it is mainly used for organic synthesis or as a solvent, often as starting material for synthesis of other complex organic compounds. In the presence of cupric chloride and TEMPO, using 1,4- butenediol as starting material, heating and oxygen reaction occurs in N,N-dimethylformamide, the content and yield were higher. The catalyst and solvent can be recycled to achieve continuous feeding reaction, and was no need to stop the reaction in the middle.
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:216.73.216.43