ε-hydroxycaproic acid, resp., were attached to a cross-linked polystyrene by an activated ester bond. In the presence of strong tert. bases cyclo-oligomerization occurred on the resin yielding a series of macrocyclic rings which were isolated with up to 10 ω-hydroxy acid residues and 91 ring atoms.
ω-羟基
十二烷酸和ε-羟基
己酸的线性二聚体分别通过活化的酯键连接到交联的聚
苯乙烯上。在强叔的存在下。在该
树脂上发生碱环低聚反应,产生了一系列大环,这些大环被分离出了多达10个ω-羟基酸残基和91个环原子。