脱镁叶绿酸钙的制备

SYNTHESIS OF CALCIUM PHEOPHORBIN

目的 制备脱镁叶绿酸钙。方法 以蚕沙提取叶绿素 ,由叶绿素制备脱镁叶绿酸 ,与氯化钙反应后制得脱镁叶绿酸钙。结果 所制得脱镁叶绿酸钙为墨绿色固体 ,不溶于水 ,也不溶于 95 %乙醇。结论 由红外光谱图分析 ,两个脱镁叶绿酸基与Ca2 + 结合成脱镁叶绿酸钙 ,分子中还存在两个单体羧基 ,仅有一个钙原子。

OBJECTIVE To study the synthesis of Calcium Pheophorbin(CP).METHODS Pheophorbin,made from chlorophy extracted from excretion of silkworms,was coordinated with CaCl 2 to produce CP.RESULTS The synthetic CP was a dark green solid.It was insoluble in water and 95% alcohol.CONCLUSION According to analysis of IR,two pheophorbins are coordinated with Ca 2+ to produce CP in which there are also two carboxylic groups.