焦脱镁叶绿酸-a甲酯的空气氧化反应及其二氢卟吩衍生物的合成  

Allomerization of Methyl Pheophorbide-a and Synthesis of Chlorin Derivatives

作　　者：王鲁敏[1] 王朋[1] 刘超[1] 金英学[2] 王进军[3] 

机构地区：[1]烟台大学化学化工学院,烟台264005 [2]哈尔滨师范大学化学化工学院,哈尔滨150025 [3]山东省黄金工程技术研究中心(工业应用),烟台264005

出　　处：《有机化学》2012年第9期1700-1707,共8页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金(No.20972036);山东省自然科学基金(No.Y2008B49)资助项目~~

摘　　要：以焦脱镁叶绿酸-a甲酯为起始原料,在碱性条件下对其实施空气氧化反应,分离出一系列在外接E-环和12-位甲基上的氧化和重排产物,氯代焦脱镁叶绿酸-a甲酯的相同反应也经历了类似的反应历程.132-位和12-位氧化产物的进一步空气氧化给出两种不同的反应结果,前者反应迅速且产物复杂,而后者则基本不发生反应.首次报道的二氢卟吩衍生物均经UV,IR,1H NMR及元素分析确定其化学结构,对相应的化学反应也提出了可能的反应机理.The allomerization of methyl pyropheophorbide-a, used as starting material, was carried out under the alkaline condition to separate a series of oxidized and rearranged products at exocyclic E-ring and C-12-methyl group. The same reac- tion of chlorinated methyl pyropheophorbide-a also came through similar processes. The further oxidations of C-132- and C-12-oxidized products gave two different results, the former reacted quickly and produced complicated compounds, the latter basically unchanged under the same condition. The structures of all new chlorin derivatives were characterized by elemental analysis, UV, IR and ^1H NMR spectra. The possible mechanisms about corresponding reactions were tentatively proposed.

关 键 词：叶绿素-A 焦脱镁叶绿酸 二氢卟吩 空气氧化反应 反应机理 

分 类 号：O621.2[理学—有机化学]