摘要
焦脱镁叶绿酸 a甲酯与溴素的亲电反应表明:在3 位乙烯基上发生亲电加成反应,而与20 位的meso 氢则发生亲电取代反应.讨论了卟吩大环的芳香性和可能的反应机理.所合成的新化合物经UV,IR,1HNMR及元素分析证明其结构.
The electrophilic reaction of methyl pyropheophorbide-a (MPP-a) demonstrates that the electrophilic addition reaction and the electrophilic substitution reaction occur on the vinyl group at 3-position and 20-meso-position, respectively. The aromaticity of chlorin and possible reaction mechanism are discussed.The structures of all new compounds are charac-terized by elemental analysis, UV, IR and^1H NMR spectra.
出处
《烟台大学学报(自然科学与工程版)》
CAS
2004年第2期111-115,共5页
Journal of Yantai University(Natural Science and Engineering Edition)
基金
国家科技部资助中韩政府间合作项目(2002年度).