Coinage Metals-Catalyzed Cascade Reactions of Aryl Alkynylaziridines: Silver(I)-Single vs Gold(I)-Double Cyclizations
作者:Nicolas Kern、Aurélien Blanc、Solène Miaskiewicz、Michelle Robinette、Jean-Marc Weibel、Patrick Pale
DOI:10.1021/jo300294r
日期:2012.5.4
Alkynylaziridines carrying an aryl group could be efficiently converted into aminoallenylidene isochromans, isoquinolines, or tetrahydronaphtalenes with silver(I) salts and into 1-azaspiro[4.5]decane derivatives with gold(I) complexes. Mechanistic investigations revealed that both Ag- and Au-catalyzed reactions involved a Friedel–Crafts type intramolecular reaction leading to an allene and that Au
Gold(i)-catalyzed rearrangement of aryl alkynylaziridines to spiro[isochroman-4,2′-pyrrolines]
作者:Nicolas Kern、Aurélien Blanc、Jean-Marc Weibel、Patrick Pale
DOI:10.1039/c1cc11351h
日期:——
Alkynylaziridines carrying an aryl group could be efficiently converted to spiro[isochroman-4,2'-pyrrolines] with gold salts as catalysts. This new rearrangement involved a Friedel-Craftstype intramolecular reaction followed by cyclization of the aminoallene intermediate, both initiated by the dual sigma and pi Lewis acidities of gold.
[EN] PROCESS FOR C-H INSERTION BY GEM-HYDROGENATION OF AN INTERNAL ALKYNE<br/>[FR] PROCÉDÉ D'INSERTION DE C-H PAR GEM-HYDROGÉNATION D'UN ALCYNE INTERNE
申请人:[en]STUDIENGESELLSCHAFT KOHLE GGMBH
公开号:WO2023110394A1
公开(公告)日:2023-06-22
The present invention is directed to a process for C-H insertion by the gem-hydrogenation of an internal alkyne.
本发明涉及一种通过内部炔烃的宝石氢化实现 C-H 插入的工艺。
Catalytic Enantioselective Protonation of Gold Enolates Enabled by Cooperative Gold(I) Catalysis
作者:Kaylaa L. Gutman、Carlos D. Quintanilla、Liming Zhang
DOI:10.1021/jacs.3c11919
日期:2024.2.14
common structural motifs in various natural products and biologically relevant compounds. Herein we report a mild access to these chiral centers using cooperative gold(I) catalysis. From cyclic ketone enol carbonates, this asymmetric catalysis provides highly enantioselective access to cyclic ketones featuring an α tertiary chiral center, including challenging 2-methylsuberone. In combination with the