Titanium Silicalite 1 (TS-1) Catalyzed Oxidative Transformations of Furan Derivatives with Hydrogen Peroxide
作者:Joos Wahlen、Bart Moens、Dirk E. De Vos、Paul L. Alsters、Pierre A. Jacobs
DOI:10.1002/adsc.200303185
日期:2004.2
The oxidation of furan derivatives with titanium silicalite 1 (TS-1) and hydrogen peroxide is described. Oxidation products are identified and possible reaction pathways are discussed. It is shown that the oxidation of these compounds occurs via epoxidation of one of the furan double bonds. The initially formed epoxides immediately undergo rearrangement, furans yielding unsaturated 1,4-dicarbonyl compounds
描述了用钛硅沸石1(TS-1)和过氧化氢氧化呋喃衍生物。确定了氧化产物并讨论了可能的反应途径。结果表明,这些化合物的氧化是通过呋喃双键之一的环氧化发生的。最初形成的环氧化物立即发生重排,呋喃产生不饱和的1,4-二羰基化合物,糠醇产生6-羟基-2 H-吡喃-3(6 H)-one。后者的化合物源自中间烯二酮醇的环化。提出的方法特别适用于将2,5-二甲基呋喃氧化为3-己烯-2,5-二酮并将糠醇转化为6-羟基-2 H-吡喃3(6 H)-一,有机合成中的通用合成子。