Five- to seven-membered common-sized heterocyclic compounds containing an oxygen, sulfur, or nitrogen were synthesized by the intramolecular condensation of α,ω-hydroxy, mercapto, or amino alkanes, respectively, over halide cluster complexes as a thermally stable molecular solid weak acid catalyst in the gas phase at temperatures ≥150 °C. From ω-mercapto and ω-amino alcohols, cyclic sulfides and amines were obtained, respectively. These unimolecular reactions are thermodynamically and kinetically favored.
通过α,ω-羟基、巯基或
氨基
烷烃的分子内缩合反应,在气相温度≥150 °C下,利用卤化物簇合物作为热稳定的弱酸性分子固体
催化剂,合成了含有
氧、
硫或
氮的五至七元普通尺寸
杂环化合物。从ω-巯基和ω-
氨基醇分别得到了环
硫醚和胺。这些单分子反应在热力学和动力学上都是有利的。