Synthesis of 3,3′-Disubstituted Indolenines Utilizing the Lewis Acid Catalyzed Alkylation of 2,3-Disubstituted Indoles with Trichloroacetimidates
作者:John Chisholm、Arijit Adhikari、Léa Radal
DOI:10.1055/s-0036-1588491
日期:2017.10
electrophiles for the selective C3-alkylation of 2,3-disubstituted indoles to provide 3,3'-disubstituted indolenines. These indolenines are common synthetic intermediates that are often utilized in the synthesis of complex molecules. Effective reaction conditions utilizing Lewisacidcatalysts have been determined, and the scope of the reaction with respect to indole and imidate reaction partner has been
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.
Palladium Catalyzed Decarboxylative Rearrangement of <i>N</i>-Alloc Indoles
作者:Jun Chen、Matthew J. Cook
DOI:10.1021/ol400110c
日期:2013.3.1
A highly efficient palladiumcatalyzed decarboxylative allylic rearrangement of alloc indoles has been developed. This can also be combined with a Suzuki–Miyaura cross-coupling reaction in a single pot transformation. Substituted alloc groups and benzylic variants have also been demonstrated alongside promising initial results on the enantioselective variant.