Palladium-Catalyzed β-Allylation of 2,3-Disubstituted Indoles
摘要:
Given the prevalence of the indole nucleus in biologically active compounds, the direct C3-functionalization of 2,3-disubstituted indoles represents an important problem. Described is a general, high-yielding method for the palladium-catalyzed beta-allylation of carba- and heterocycle fused indoles, including complex natural product substrates.
Ruthenium Hydride/Brønsted Acid-Catalyzed Tandem Isomerization/<i>N</i>-Acyliminium Cyclization Sequence for the Synthesis of Tetrahydro-β-carbolines
作者:Casper L. Hansen、Janie W. Clausen、Ragnhild G. Ohm、Erhad Ascic、Sebastian T. Le Quement、David Tanner、Thomas E. Nielsen
DOI:10.1021/jo402192s
日期:2013.12.20
reaction but also attractive possibilities for total synthesis, including rapid generation of molecular complexity and formation of quaternary stereogenic centers. TBHCs can also be accessed by harnessing the Suzuki cross-coupling reaction to the isomerization/N-acyliminiumcyclizationsequence. Finally, diastereo- and enantioselective versions of the title reaction have been examined using substrate control
Palladium-Catalyzed β-Allylation of 2,3-Disubstituted Indoles
作者:Natsuko Kagawa、Jeremiah P. Malerich、Viresh H. Rawal
DOI:10.1021/ol8006277
日期:2008.6.1
Given the prevalence of the indole nucleus in biologically active compounds, the direct C3-functionalization of 2,3-disubstituted indoles represents an important problem. Described is a general, high-yielding method for the palladium-catalyzed beta-allylation of carba- and heterocycle fused indoles, including complex natural product substrates.