33405-85-5Relevant academic research and scientific papers
Unprecedented SnCl2-mediated cyclization of nitro arenes via N-N bond formation
Sawant, Devesh,Kumar, Rishi,Maulik, Prakas R.,Kundu, Bijoy
, p. 1525 - 1528 (2007/10/03)
A mild, efficient, one-pot protocol for the cyclization of nitro-aryl substrates using SnCl2 has been described. The mechanistic course of the reaction suggests the involvement of a hydroxylamine intermediate leading to an intramolecular cyclization via N-N bond formation. The versatility of the methodology has been demonstrated by using two nitro-aryl substrates derived from dihydroisoquinolines and dihydro-β-carbolines. The intramolecular cyclization led to the formation of indazoles in high yields and purities.
Synthesis of new β-carboline derivatives via 1,7-electrocyclisation of azomethine ylides
Nyerges, Miklos,Viranyi, Andrea,Toth, Judit,Blasko, Gabor,Toke, Laszlo
, p. 1273 - 1278 (2007/10/03)
A new route to the benzo[5,6]azepino[2,1-a]-β-carboline and indazolo[3,2-a]-β-carboline ring systems has been developed via the 1,7-dipolar electrocyclisation reactions of azomethine ylides derived from easily available β-carboline derivatives. Georg Thie
