title: Tricarbonylcyclohexadienyliumiron Complexes in the Synthesis of 2-Azaspiro[5.5]undecane System with Tunable Amide.
abstract: Excellent regio- and stereoselectivity during nitrile addition to dienylium-Fe(CO)(3) can be achieved with perchlorate salts, allowing the preparation of the 1-oxo- and 3-oxo-2-azaspiro[5.5]undecane ring systems. The phthalimide complex 2 was prepared in high yield by Mitsunobo reaction.
authors.affiliation: Department of Chemistry, National Sun Yat Sen University, Kaoshiung, Taiwan 804.
authors.forename: Chi Wi
authors.initials: CW
authors.lastname: Ong
authors.forename: Han Ming
authors.initials: HM
authors.lastname: Wang
authors.forename: You Ann
authors.initials: YA
authors.lastname: Chang