Olefin-Metathesis-Based Synthesis of Furans by an RCM/Deprotonation/Phosphorylation Sequence and Their Diels-Alder Reactions
作者:Bernd Schmidt、Diana Geißler
DOI:10.1002/ejoc.201101078
日期:2011.12
Butenolides, obtained by ring-closing metathesis (RCM) of acrylates, undergo quantitative deprotonation with amide bases. Trapping of the resulting anions with electrophiles, for example, chlorophosphates, give furans. Subsequent Diels–Alderreaction and acid-catalysed rearrangement of the resulting oxabicyclonorbornadienes give substituted benzenes.