Synthesis of Heterocycles through a Ruthenium-Catalyzed Tandem Ring-Closing Metathesis/Isomerization/N-Acyliminium Cyclization Sequence
作者:Erhad Ascic、Jakob F. Jensen、Thomas E. Nielsen
DOI:10.1002/anie.201100417
日期:2011.5.23
Tandem bicycle: In the title reaction double bonds created during ring‐closingmetathesis isomerize to generate reactive iminium intermediates that undergo intramolecular cyclization reactions with tethered heteroatom and carbon nucleophiles. In this way, a series of biologically interesting heterocyclic compounds can be made, including a known precursor for the total synthesis of the antiparasitic