1034307-10-2Relevant academic research and scientific papers
Palladium-Catalyzed [2 + 2 + 2] Annulation via Transformations of Multiple C-H Bonds: One-Pot Synthesis of Diverse Indolo[3,2- a]carbazoles
Kumar, K. Shiva,Meesa, Siddi Ramulu,Naikawadi, Praveen Kumar
, p. 6079 - 6083 (2018)
A Pd-catalyzed novel cascade reaction has been developed for the synthesis of indolo[3,2a]carbazoles involving multiple C-H transformation-annulations between the indoles and alkynes. The method involves molecular oxygen as the sole oxidant and is an effective and step-economic process.
Modifications of 5,12-dihydroindolo[3,2-a]carbazole scaffold via its regioselective C2,9-formylation and C2,9-acetylation
Kazin, Nikita A.,Demina, Nadezhda S.,Irgashev, Roman A.,Zhilina, Ekaterina F.,Rusinov, Gennady L.
, p. 4686 - 4696 (2019/07/19)
The effective approaches for regioselective double formylation and acetylation of 5,12-dialkyl-6,7-diaryl-substituted 5,12-dihydroindolo[3,2-a]carbazoles by their treatment with dichloromethyl methyl ether in the presence of SnCl4 or with acetyl chloride in the presence of AlCl3 to afford the 2,9-diformyl or 2,9-diacetyl derivatives, respectively, were developed. Furthermore, new 2,9-bis(2,2-dicyanovinyl) derivatives were synthesized by the Knoevenagel condensation of diformyl-containing substrates with malononitrile, when new 2,9-bis(quinoxaline-2-yl)- and 2,9-bis(benzo[g]quinoxaline-2-yl) derivatives were formed via microwave-promoted oxidation of diacetyl-containing substrates with SeO2 to the corresponding diglyoxals, followed by the reaction of these intermediates with o-phenylendiamine or 2,3-diaminonaphthalene, respectively. The basic optical and electrochemical properties of some 5,12-dihydroindolo[3,2-a]carbazoles were investigated.
An efficient synthesis of indolo[3,2-a]carbazoles via the novel acid catalyzed reaction of indoles and diaryl-1,2-diones
Nair, Vijay,Nandialath, Vidya,Abhilash, Keecherikunnel G.,Suresh, Eringathodi
experimental part, p. 1738 - 1742 (2008/10/09)
A mild and efficient one pot method for the synthesis of indolo[3,2-a]carbazole derivatives by the para-toluenesulfonic acid catalyzed condensation of indole with acyclic 1,2-diones is described. With cyclobutene-1,2-diones the reaction afforded indole substituted carbazole derivatives in good yield. The Royal Society of Chemistry.
