【摘要】 以焦脱镁叶绿酸a甲酯为起始原料 ,利用其 2 位乙烯基的加成和氧化反应将乙烯基转化成羟烷基 .为了排除9 位羰基对后期化学反应的影响 ,首先通过乙二醇对其进行保护 ,合成了 9 位羰基保护的焦脱镁叶绿酸的衍生物 ,再利用氧化反应将羟烷基氧化成甲酰和乙酰基 ,进而成功地进行了格氏反应 .所合成的焦脱镁叶绿酸a甲酯的衍生物均经UV ,IR ,1HNMR和元素分析确证更多还原

【Abstract】 Methyl pyropheophorbide a was used as starting material for the synthesis of title compounds. After protecting the exocyclic carbonyl group at the 9-position with ethylene glycol in the presence of trimethylsilychloride, the vinyl group of methyl pyropheophorbide a was converted into formyl and acetyl groups by the reaction of addition and oxidations of vinyl group at the 2-position. Grignard reactions of 9-carbonyl-protected methyl pyropheophorbide a derivatives could be, then performed successfully.更多还原