Synthesis of (spiro)cyclopentapyridinones via Csp3–H functionalization: a post-Ugi gold-catalyzed regioselective tandem cyclization
作者:Dipak D. Vachhani、Marzia Galli、Jeroen Jacobs、Luc Van Meervelt、Erik V. Van der Eycken
DOI:10.1039/c3cc43418d
日期:——
A gold-catalyzed regioselective tandem cyclization of N-propynylbutynamide via Csp3âH functionalization has been described, providing a distinctive methodology for the architecture of cyclopentapyridinones as well as spirocyclopentapyridinones.
Copper-mediated trifluoromethylation of propiolic acids: facile synthesis of α-trifluoromethyl ketones
作者:Zhengbiao He、Rui Zhang、Mingyou Hu、Lingchun Li、Chuanfa Ni、Jinbo Hu
DOI:10.1039/c3sc51613j
日期:——
Copper-mediated decarboxylative trifluoromethylation provides a new protocol for the efficient preparation of α-trifluoromethyl ketones from propiolic acids. It was found that water is involved as a reactant in the reaction, which is significantly different from the previously reported decarboxylative fluoroalkylation reactions.