153805-85-7Relevant academic research and scientific papers
Convenient modification of the Leimgruber-Batcho indole synthesis: Reduction of 2-nitro-p-pyrrolidinostyrenes by the FeCl3-activated carbon-N2H4H2O system
Taydakov,Dutova,Sidorenko,Krasnoselsky
experimental part, p. 425 - 434 (2012/01/13)
A new catalytic system containing ferric chloride, activated carbon, and hydrazine has been proposed for the reductive cyclization of β-dialkylamino-2-nitrostyrenes to give the corresponding indoles (Leimgruber-Batcho synthesis). Various substituted indoles may be obtained in high yield under these conditions.
Practical synthesis of indolopyrrolocarbazoles
Ohkubo, Mitsuru,Nishimura, Teruyuki,Jona, Hideki,Honma, Teruki,Morishima, Hajime
, p. 8099 - 8112 (2007/10/03)
A practical method for the synthesis of an indolo[2,3-a]pyrrolo[3,4- c]carbazole ring system is described. The method involves two key processes: a coupling reaction between indole and substituted methylmaleimide portions using lithium hexamethyldisilazide (LiHMDS) as a base, and the oxidative cyclization of bisindolylmaleimide with palladium (II) chloride. We applied this method to the synthesis of arcyriaflavin B (5), C (6) and D (7).
