The Synthesis and Chemoselective Reactivity of 3-Aminocyclopentadienones
摘要:
Iron and cobalt complexes of 3-aminocyclopentadienones have been synthesized from the [2 + 2 + 1] cycloadditions of nitrogen acetylenes and pendant alkynes. Following decomplexation, the resulting 3-aminocyclopentadienones have been subjected to chemo- and regioselective cycloadditions with dienophiles and heterodienes.
On the Mechanism of Au‐Catalyzed Enynamide‐yne Dehydro‐Diels‐Alder Reactions: An Experimental and Computational Study
作者:David Fabian León Rayo、Young J. Hong、Dominic Campeau、Dean J. Tantillo、Fabien Gagosz
DOI:10.1002/chem.202100580
日期:——
access to a variety of N-containing aromatic heterocycles. A dual gold catalysis mechanism was postulated for transformations involving the formation of C−C bonds by reaction between a terminal alkyne and an enynamide fragment. In this article, complete experimental and computational investigations into the mechanism of such a transformation are reported. Support for a dual gold catalysis was found
An efficient synthesis of spiroaminals over fused aminals has been successfully developed by bimetallic Au/Sc catalysis by using TMS as a traceless controlling group.
The Synthesis and Chemoselective Reactivity of 3-Aminocyclopentadienones
作者:Jon D. Rainier、Jason E. Imbriglio
DOI:10.1021/jo001044t
日期:2000.11.1
Iron and cobalt complexes of 3-aminocyclopentadienones have been synthesized from the [2 + 2 + 1] cycloadditions of nitrogen acetylenes and pendant alkynes. Following decomplexation, the resulting 3-aminocyclopentadienones have been subjected to chemo- and regioselective cycloadditions with dienophiles and heterodienes.
Gold-Catalyzed Formal Dehydro-Diels-Alder Reactions of Ene-Ynamide Derivatives Bearing Terminal Alkyne Chains: Scope and Mechanistic Studies
synthesis of a variety of N‐containing aromatic heterocycles by a formal gold‐catalyzed dehydro‐Diels–Alder reaction of ynamide derivatives has been developed. Deuterium‐labeling experiments and kinetic studies support the involvement of a dual gold catalysis mechanism in which a gold acetylide moiety adds onto an aurated keteneiminium.