<i>N</i>-Benzyl Pyridinium Salts as New Useful Catalysts for Transformation of Epoxides to Cyclic Acetals, Orthoesters, and Orthocarbonates
作者:Sang-Bong Lee、Toshikazu Takata、Takeshi Endo
DOI:10.1246/cl.1990.2019
日期:1990.11
In the presence of catalytic amount of N-(4-methoxybenzyl)-2-cyanopyridinium hexafluoroantimonate, the reaction of a few epoxides with aldehydes, ketones, lactones, and carbonates efficiently afforded corresponding cyclic acetals, orthoesters, and Orthocarbonates under mild conditions.
在催化量的 N-(4-甲氧基苄基)-2-氰基吡啶鎓六氟锑酸盐存在下,一些环氧化物与醛、酮、内酯和碳酸盐的反应在温和的条件下有效地生成了相应的环醛、原酯和正碳酸盐。