Synthesis of New <i>N</i>
-alkyl-5-formyl-2-methylpyrrole Derivatives from Glucosamine
作者:Tao Tao、Hua Xin Zhao、Xiao Ming Ji、Miao Lai、Ming Qin Zhao
DOI:10.1002/jhet.3122
日期:2018.4
Glucosamine hydrochloride 1 was treated with 1,3‐dicarbonyl compounds to obtain 2‐methyl‐5‐(1,2,3,4‐tetrahydroxy‐butyl) pyrrole 2a and 2b, respectively. Under the role of NaIO4, 2a and 2b were successfully transformed into the related 5‐formal pyrrole derivative 3a and 3b, respectively. Compounds 4a–4d and 5a–5e were obtained by reacting 3a and 3b with chlorinated hydrocarbons by alkylation reactions
用1,3-二羰基化合物处理氨基葡萄糖盐酸盐1,分别得到2-甲基-5-(1,2,3,4-四羟基丁基)吡咯2a和2b。在NaIO 4的作用下,2a和2b分别成功转化为相关的5形式吡咯衍生物3a和3b。通过3a和3b反应获得化合物4a - 4d和5a - 5e分别通过烷基化反应与氯代烃反应。所有新产品的结构均通过IR,NMR和HRMS光谱确认。