title: A novel generation of indole-2,3-quinodimethanes.
abstract: [reaction: see text] A novel and efficient procedure for the generation of the reactive indole-2,3-quinodimethane intermediates from the allenylanilines is described. The indole-2,3-quinodimethane intermediates were captured by several dienophiles to afford the corresponding tetrahydro- and dihydrocarbazole derivatives. This method is significantly different from the previously reported ones, which involve the 1,4-elimination or its related reactions of the indole derivatives that possess suitable substituents at both the C-2 and C-3 positions.
authors.affiliation: Division of Pharmaceutical Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors.forename: Norikazu
authors.initials: N
authors.lastname: Kuroda
authors.forename: Yukie
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Yoshinaga
authors.forename: Chisato
authors.initials: C
authors.lastname: Mukai
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry; D002384:Catalysis; D007211:Indoles / Q000138:chemical synthesis* / Q000737:chemistry; D008697:Methane / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure
chemical_list: D000814:Aniline Compounds; D007211:Indoles; D008697:Methane