title: Exploring the "fold-in" strategy toward the construction of a highly-strained triazasumanene skeleton.
abstract: The synthesis of tribenzotriazasumanene was attempted on the basis of the "fold-in" synthesis of cyclic pyrrole trimer 5 and its analogues under oxidative and reductive conditions. While unexpectedly triply-fused product 6 was obtained in the oxidation of 5 with FeCl3and AgOTf, the reductive coupling of hexabromo-tri-N-methylpyrrole trimer 9 furnished partially fused product 10. These results indicate the potential of the "fold-in" strategy that gave complementary outcomes depending on the reaction conditions.
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan. taka@kuchem.kyoto-u.ac.jp osuka@kuchem.kyoto-u.ac.jp.
authors.forename: Fengkun
authors.initials: F
authors.lastname: Chen
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan. taka@kuchem.kyoto-u.ac.jp osuka@kuchem.kyoto-u.ac.jp.
authors.forename: Takayuki
authors.identifier: http://orcid.org/0000-0001-8018-7984
authors.initials: T
authors.lastname: Tanaka
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan. taka@kuchem.kyoto-u.ac.jp osuka@kuchem.kyoto-u.ac.jp.
authors.forename: Atsuhiro
authors.initials: A
authors.lastname: Osuka