Baeyer-Villiger Oxidation with Me<sub>3</sub>SiOOSiMe<sub>3</sub>under Assistance of SnCl<sub>4</sub>or BF<sub>3</sub>·OEt<sub>2</sub>
作者:Seijiro Matsubara、Kazuhiko Takai、Hitosi Nozaki
DOI:10.1246/bcsj.56.2029
日期:1983.7
Treatment of ketones with bis(trimethylsilyl) peroxide and Lewis acid such as SnCl4 or BF3·OEt2 in dichloromcthane at room temperature affords esters in fair to excellent yields. Jasmine lactone is synthesized from 2-[(Z)-2-pentenyl]cyclopentanone by means of Me3SiOOSiMe3–BF3·OEt2 system without any protection of the carbon-carbon double bond. The oxidation of enol acetates of ketones to α-hydroxy (or α-acetoxy) ketones with Me3SiOOSiMe3–FeCl3 system is also disclosed.
在室温下,使用二氯甲烷中的过氧化物二(三甲基硅基)和路易斯酸如SnCl4或BF3·OEt2处理酮,可以以较好至优秀的产率得到酯。茉莉内酯通过2-[(Z)-2-戊烯基]环戊酮与Me3SiOOSiMe3–BF3·OEt2体系的反应合成,无需保护碳-碳双键。此外,使用Me3SiOOSiMe3–FeCl3体系将酮的烯醇酯氧化为α-羟基(或α-乙酰氧基)酮的方法也被披露。