title: Cobalt-catalyzed aziridination with diphenylphosphoryl azide (DPPA): direct synthesis of N-phosphorus-substituted aziridines from alkenes.
abstract: A new catalytic aziridination system that consists of cobalt(II) tetraphenylporphyrin [Co(TPP)] as the catalyst and diphenylphosphoryl azide (DPPA) as the nitrene source has been developed. The cobalt-based catalytic system allows direct synthesis of N-phosphorus-substituted aziridines from alkenes with dinitrogen as the byproduct. Cobalt ion seems essential to the catalytic aziridination with DPPA as no or only trace amounts of the desired products were observed with other metal complexes of tetraphenylporphyrin.
authors.affiliation: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600, USA.
authors.forename: Guang-Yao
authors.initials: GY
authors.lastname: Gao
authors.forename: Jess E
authors.initials: JE
authors.lastname: Jones
authors.forename: Renu
authors.initials: R
authors.lastname: Vyas
authors.forename: Jeremiah D
authors.initials: JD
authors.lastname: Harden
authors.forename: X Peter
authors.initials: XP
authors.lastname: Zhang