Synthesis of Common-sized Heterocyclic Compounds by Intramolecular Cyclization over Halide Cluster Catalysts
作者:Sayoko Nagashima、Tomoaki Sasaki、Satoshi Kamiguchi、Teiji Chihara
DOI:10.1246/cl.150134
日期:2015.6.5
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。