A study of the origin and modifications of the C5 unit in plant products—new synthesis of angelicin and psoralen
作者:R. Aneja、S.K. Mukerjee、T.R. Seshadri
DOI:10.1016/0040-4020(58)80047-2
日期:1958.1
non-terpenoid compounds contain isoprene units. The C5 units may have their origin based on senecioic acid, or mevalonic acid, but the fundamental stage seems to be an α-hydroxy-γ,γ-dimethylallyl system, which can undergo a number of modifications giving rise to types of compounds listed below under (A) to (F) in increasing order of complexity. The simpler furan derivatives are also now considered to be
大量天然的基本非萜类化合物包含异戊二烯单元。C 5单元可能源自千里香酸或甲羟戊酸,但基本阶段似乎是α-羟基-γ,γ-二甲基烯丙基系统,该系统可能会进行许多修饰,从而列出列出的化合物类型在(A)到(F)下按复杂度从高到低顺序排列。现在还认为,较简单的呋喃衍生物是通过氧化损失三个碳原子而衍生自C 5单元的。这不仅基于类型的共现,而且还基于转化二甲基烯丙基(C 5)和烯丙基变成呋喃。关于这一点,描述了当归素和补骨脂素的合成。此外,呋喃喹啉的呋喃环应被认为具有相似的起源。