title: Facile and exclusive formation of aziridinofullerenes by acid-catalyzed denitrogenation of triazolinofullerenes.
abstract: Variously substituted [6,6]closed aziridinofullerenes were exclusively obtained from acid-catalyzed denitrogenation of triazolinofullerenes without formation of relevant [5,6]open azafulleroids, which are the major products on noncatalyzed denitrogenation. The mechanistic consideration by DFT calculations suggested a reaction sequence involving initial pre-equilibrium protonation of the triazoline N(1) atom, generation of aminofullerenyl cation by nitrogen-extrusion, and final aziridination.
authors.affiliation: Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. ikuma@chem.eng.osaka-u.ac.jp
authors.forename: Naohiko
authors.initials: N
authors.lastname: Ikuma
authors.forename: Tsubasa
authors.initials: T
authors.lastname: Mikie
authors.forename: Yuta
authors.initials: Y
authors.lastname: Doi
authors.forename: Koji
authors.initials: K
authors.lastname: Nakagawa
authors.forename: Ken
authors.initials: K
authors.lastname: Kokubo
authors.forename: Takumi
authors.initials: T
authors.lastname: Oshima