Regioselective synthesis of 1-alkyl-5-(indol-3-yl- and -2-yl)pyrrolidin-2-ones from available reagents
摘要:
The reaction under mild conditions of 1-alkyl-5-hydroxypyrrolidin-2-ones with different indoles having a free 3 position leads exclusively to 1-alkyl-5-(indol-3-yl)pyrrolidin-2-ones but if position 3 is occupied to 1-alkyl-5-(indol-2-yl)pyrrolidin-2-ones.
Regioselective synthesis of 1-alkyl-5-(indol-3-yl- and -2-yl)pyrrolidin-2-ones from available reagents
摘要:
The reaction under mild conditions of 1-alkyl-5-hydroxypyrrolidin-2-ones with different indoles having a free 3 position leads exclusively to 1-alkyl-5-(indol-3-yl)pyrrolidin-2-ones but if position 3 is occupied to 1-alkyl-5-(indol-2-yl)pyrrolidin-2-ones.
Synthesis of Substituted Indoles from 2-Azidoacrylates and <i>ortho</i>-Silyl Aryltriflates
作者:Deng Hong、Zhengbo Chen、Xufeng Lin、Yanguang Wang
DOI:10.1021/ol101934v
日期:2010.10.15
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.
Synthesis of 3-Arylindole-2-carboxylates via Copper-Catalyzed Hydroarylation of o-Nitrophenyl-Substituted Alkynoates and Subsequent Cadogan Cyclization
A two‐step route to biologically important 3‐arylindole‐2‐carboxylic esters has been successfully established: o‐nitrophenyl‐substituted alkynoates underwent copper‐catalyzedhydroarylation 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
Regioselective synthesis of 1-alkyl-5-(indol-3-yl- and -2-yl)pyrrolidin-2-ones from available reagents
作者:A. V. Sadovoy、A. E. Kovrov、G. A. Golubeva、L. A. Sviridova
DOI:10.1007/s10593-011-0655-x
日期:2011.1
The reaction under mild conditions of 1-alkyl-5-hydroxypyrrolidin-2-ones with different indoles having a free 3 position leads exclusively to 1-alkyl-5-(indol-3-yl)pyrrolidin-2-ones but if position 3 is occupied to 1-alkyl-5-(indol-2-yl)pyrrolidin-2-ones.