作者:Marta Solas、Miguel A. Muñoz、Samuel Suárez-Pantiga、Roberto Sanz
DOI:10.1021/acs.orglett.0c02892
日期:2020.10.2
Skipped diynones, efficiently prepared from biomass-derived ethyl lactate, undergo a tandem hydration–oxacyclization reaction under gold(I) catalysis. Reaction conditions have been developed for a switchable process that allows selective access to 4-pyrones or 3(2H)-furanones from the same starting diynones. Further application of this methodology in the total synthesis of polyporapyranone B was demonstrated
由生物质衍生的乳酸乙酯有效制备的已跳过的二炔酮,在金(I)催化下经历了串联水合-氧环化反应。已经开发了用于可切换过程的反应条件,该过程允许从相同的起始二炔酮选择性地获得4-吡喃酮或3(2 H)-呋喃酮。证明了该方法在聚吡喃酮B的全合成中的进一步应用。