Synthesis of fused tricyclic amines unsubstituted at the ring-junction positions by a cascade condensation, cyclization, cycloaddition then decarbonylation strategy
作者:Iain Coldham、Adam J M Burrell、Hélène D S Guerrand、Luke Watson、Nathaniel G Martin、Niall Oram
DOI:10.3762/bjoc.8.11
日期:——
involving condensation to an intermediate imine, then cyclization and formation of an intermediate azomethine ylide and then intramolecular dipolar cycloaddition. The fusedtricyclic products are formed with complete or very high stereochemical control. The hydroxymethyl group was converted into an aldehyde - which could be removed to give the tricyclic amine products that are unsubstituted at the ring