A Versatile Cyclodehydration Reaction for the Synthesis of Isoquinoline and β-Carboline Derivatives
作者:Mohammad Movassaghi、Matthew D. Hill
DOI:10.1021/ol801264u
日期:2008.8.21
beta-carboline derivatives via mild electrophilic amide activation, with trifluoromethanesulfonic anhydride in the presence of 2-chloropyridine, is described. Low-temperature amide activation followed by cyclodehydration upon warming provides the desired products with short overall reaction times. The successful use of nonactivated and halogenated phenethylene derived amides, N-vinyl amides, and optically active
Manske, Canadian Journal of Research, 1931, vol. 5, p. 599
作者:Manske
DOI:——
日期:——
Direct coupling of functionalized organolithium compounds with aryl and vinyl halides
作者:Jose Barluenga、Javier M. Montserrat、Josefa Florez
DOI:10.1021/jo00074a025
日期:1993.10
The reaction between beta- and gamma-nitrogen-functionalized and gamma- and epsilon-oxygen-functionalized organolithium compounds 3, 4, 30-32 and different aromatic, heteroaromatic, and vinylic halides affords directly the corresponding substitution products: functionalized benzamides 5-26 and alcohols 33-37. Symmetrical and mixed products of double coupling 38-40 were also prepared from 1,4-diiodobenzene. The formation of alkyl halides as intermediates has been verified. Aryl or vinyl halides giving rise to unstable aryl or vinyllithium reagents were unsuccessful in the coupling reaction.
Manske, Canadian Journal of Research, 1931, vol. 4, p. 275,281
作者:Manske
DOI:——
日期:——
Iodine(III)-Mediated Selective Intermolecular C–H Amination for the Chemical Diversification of Tryptamines
作者:Alexandra E. Bosnidou、Alba Millán、Javier Ceballos、Claudio Martínez、Kilian Muñiz
DOI:10.1021/acs.joc.6b01118
日期:2016.8.5
Defined hypervalent iodine reagents of the general structure PhI[N(SO2R)(SO2R′)]2 promote the selective direct C–H-amination of the indole core of various tryptamines. Starting from a general C2-amination strategy, subsequent transformations enable a variety of site-selective functionalizations, which proceed with noteworthy high chemoselectivity and provide an overall access to structurally diversified products