Reactions of 1,2-bis(1H-indol-2-yl)ethane: Formation of indolo[2,3-c]carbazole and cyclohept[1,2-b : 5,4-b ']bisindole derivatives
2000 (English)In: Tetrahedron, ISSN 0040-4020, E-ISSN 1464-5416, Vol. 56, no 13, 1911-1916 p.Article in journal (Refereed) Published
1,2-Bis(1H-indol-2-yl)ethane (9) has been prepared and converted into indolo[2,3-c]carbazole (8) using palladium acetate in refluxing acetic acid. Reaction of 9 with CoF3 in hot TFA led to isolation of cyclohept[1,2-b:5,4-b']bisindole derivatives 11 and 12, which could be elaborated into further derivatives. Treatment of 9 with orthoesters, aldehydes and ketones under acidic conditions afforded additional bisindoles containing a seven-membered ring.
Place, publisher, year, edition, pages
2000. Vol. 56, no 13, 1911-1916 p.
IdentifiersURN: urn:nbn:se:sh:diva-15754DOI: 10.1016/S0040-4020(00)00100-9ISI: 000086135500016ScopusID: 2-s2.0-0034708815OAI: oai:DiVA.org:sh-15754DiVA: diva2:508037