Migratory Insertion of Isonitriles into Titanacyclobutane Complexes. A Novel Stereocontrolled Synthesis of Substituted Cyclobutanimines

Isonitrile migratory insertion into substituted titanacyclobutane complexes provides for the stereocontrolled synthesis of synthetically valuable organic cyclobutanimines. Using the sterically crowded permethyltitanocene system, the intermediate iminoacyl complex is isolable and can be diverted by carbonylation to yield five-membered-ring enamidolate complexes.