An Effective Synthesis of Acid-Sensitive Epoxides via Oxidation of Terpenes and Styrenes Using Hydrogen Peroxide under Organic Solvent-Free Conditions
作者:Kazuhiko Sato、Yoshihiro Kon、Houjin Hachiya、Yutaka Ono、Tomohiro Matsumoto
DOI:10.1055/s-0030-1258467
日期:2011.4
An efficient epoxidation process for various terpenes and styrenes using a hydrogen peroxide-tungsten catalytic system with organic solvent- and halide-free conditions was developed. In the presence of the catalytic system, Na2WO4, PhP(O)(OH)2, and [Me(n-C8H17)3N]HSO4, and under weak acidic conditions, hydrogen peroxide successfully epoxidized α-pinene to α-pinene oxide in 95% selectivity at 91% conversion
开发了一种在无有机溶剂和无卤化物条件下使用过氧化氢-钨催化体系对各种萜烯和苯乙烯进行高效环氧化的方法。在催化体系Na 2 WO 4,PhP(O)(OH)2和[Me(n -C 8 H 17)3 N] HSO 4的存在下,在弱酸性条件下,过氧化氢成功地环氧化了α -pine烯至α-pine烯氧化物的转化率为95%,转化率为91%,而先前公布的利用NH 2 CH 2 P(O)(OH)2作为促进剂的条件没有提供环氧化物。 氧化-催化-环氧化物-萜类化合物-苯乙烯