Concise enantioselective construction of a bridged azatricyclic framework via domino semipinacol–Schmidt reaction†
Abstract
A TiCl4-promoted domino semipinacol–Schmidt reaction of oxaspiropentane-azide provides an easy access to bridged azatricyclic ring systems, which possess the azaquaternary center, present in the immunosupressant FR901483 and