作者:Danielle J. Vugts、Lars Veum、Kanar al-Mafraji、Renske Lemmens、Rob F. Schmitz、Frans J. J. de Kanter、Marinus B. Groen、Ulf Hanefeld、Romano V. A. Orru
DOI:10.1002/ejoc.200500905
日期:2006.4
Oxidation–hydrocyanation of γ,δ-unsaturated alcohols using (immobilised) TEMPO/PhI(OAc)2 in combination with HbHNL proceeds smoothly. After (in situ) protection, the resulting cyanohydrin derivatives were obtained in good overall yields and high ee’s. A mild TEMPO-catalysed oxidation protocol is described that yields β,γ-unsaturated aldehydes without isomerisation of the double bond and that is compatible
使用(固定的)TEMPO/PhI(OAc)2 与 HbHNL 结合对 γ,δ-不饱和醇进行氧化-氢氰化反应顺利进行。(原位)保护后,得到的氰醇衍生物以良好的总产率和高ee's获得。描述了一种温和的 TEMPO 催化氧化方案,它产生 β,γ-不饱和醛,而没有双键异构化,并且与随后在同一溶剂系统中进行的 HbHNL 催化氢氰化反应兼容。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)