title: Synthetic applications of cyanoacetylated bisindoles: synthesis of novel cycloheptadiindoles, indolocarbazoles, and related aza analogues.
abstract: Cyclization reactions involving cyanoacetylated bisindoles have been studied, providing access to various novel cyclohepta[2,1-b:3,4-b']diindole derivatives as well as some related fused pentacyclic systems. Treatment of 3-cyanoacetyl-2,3'-diindolylmethane with methanesulfonic acid gave 6-(cyanomethyl)indolo[3,2-b]carbazole in a good yield.
authors.affiliation: Unit for Organic Chemistry, Department of Biosciences and Nutrition, Karolinska Institute, Novum Research Park, SE-141 57 Huddinge, Sweden.
authors.forename: Niklas
authors.initials: N
authors.lastname: Wahlström
authors.forename: Johnny
authors.initials: J
authors.lastname: Slätt
authors.forename: Birgitta
authors.initials: B
authors.lastname: Stensland
authors.forename: Anne
authors.initials: A
authors.lastname: Ertan
authors.forename: Jan
authors.initials: J
authors.lastname: Bergman
authors.forename: Tomasz
authors.initials: T
authors.lastname: Janosik
mesh_terms: D000107:Acetylation; D001372:Aza Compounds / Q000138:chemical synthesis*; D002227:Carbazoles / Q000138:chemical synthesis*; D007211:Indoles / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared
chemical_list: D001372:Aza Compounds; D002227:Carbazoles; D007211:Indoles