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:《化工时刊》2010年第9期28-32,共5页Chemical Industry Times
摘 要:介绍Boc-L-脯氨酸与L-苯丙氨酸甲酯盐酸盐通过DCC-HOB t缩合、羧基脱保护、氨基脱保护3步反应合成L-脯氨酰-L-苯丙氨酸二肽的实验教学研究。该实验简便易操作,反应时间短,实验所用到的试剂、样品安全无毒,且涉及的重要基本单元操作及综合表征手段多种多样,非常适合化学化工及相关专业的高年级本科生作为科研型教学实验使用。The synthesis of dipeptide L-Pro-L-Phe-OH with the Boc-L-Proline and methyl ester L-Phenyl alanine hydrochloride as the starting materials was introduced.The above reaction process included three steps: a coupling reaction of the two starting materials with DCC and HOBt,a saponification of carboxyl group and a final deprotection of amino group.As an experimental example for scientific research and teaching,it was quite fit for senior undergraduate students in chemistry,chemical engineering and the related specialties.This experiment composed of several important unit reactions was easily handled and had the following advantages: less toxic solvents and starting materials,short reaction time,several structural characterization methods for practice.
关 键 词:DCC-HOBt缩合 脱保护 二肽 实验教学
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:216.73.216.70