1246775-33-6Relevant academic research and scientific papers
Synthesis of 3-arylindole-2-carboxylates via copper-catalyzed hydroarylation of o-nitrophenyl-substituted alkynoates and subsequent cadogan cyclization
Yamamoto, Yoshihiko,Yamada, Satoshi,Nishiyama, Hisao
, p. 701 - 706 (2011/05/08)
A two-step route to biologically important 3-arylindole-2-carboxylic esters has been successfully established: o-nitrophenyl-substituted alkynoates underwent copper-catalyzed hydroarylation in the presence of commercially available arylboronic acids to afford 3,3-diarylacrylates, which were then converted to indolecarboxylates via a modified Cadogan cyclization using a molybdenum catalyst and triphenylphosphine. Copyright
Synthesis of substituted indoles from 2-azidoacrylates and ortho-silyl aryltriflates
Hong, Deng,Chen, Zhengbo,Lin, Xufeng,Wang, Yanguang
supporting information; experimental part, p. 4608 - 4611 (2010/12/18)
2-Azidoacrylates react with benzynes in the presence of PPh3 and CsF to afford substituted indoles in good yields. The reaction involves the formation of iminophosphorane and benzyne and a subsequent double cyclization/hydrolysis/air-oxidation cascade. This methodology was utilized to synthesize 10H-indolo[1,2-a]indol-10-ones.
