Experimental and computational evidence on gold-catalyzed regioselective hydration of phthalimido-protected propargylamines: an entry to β-amino ketones
between the propargyl triple bond and the Au(I) catalyst, in particular the character of the gold-triple bond interaction, are essential for the observed regioselectivity. Other effects, such as the presence of the solvent and the formation of a H-bond between the water molecule and the phthalimido moiety, although apparently irrelevant for the regioselectivity, have proven to be kinetically and catalytically
Photocatalytic Alkyl Radical Addition Tandem Oxidation of Alkenyl Borates
作者:Yu-Jie Li、De-Guang Liu、Jin-Hu Ren、Tian-Jun Gong、Yao Fu
DOI:10.1021/acs.joc.2c02923
日期:——
Photocatalytic oxidation is a popular transformation way for organic synthesis and is widely applied in academia and industry. Herein, we report a blue light-induced alkylation–oxidation tandemreaction for the synthesis of diverse ketones by combining alkyl radical addition and oxidation of alkenyl borates. This reaction shows excellent functional group compatibility in acceptable yields, and diversity
A dual nickel/photoredox catalyzed selective radical-radical cross-coupling reaction has been developed with readily available carboxylicacids and their NHPI ester derivatives as coupling partners. This synergistic catalysis enables the mild and efficient building of C(sp2)−C(sp3) bonds or C(sp3)−C(sp3) bonds, affording structurally complex ketones and congested products with all-carbon quaternary