Nickel-Catalyzed Reductive Carboxylation of Cyclopropyl Motifs with Carbon Dioxide
作者:Ruben Martin、Toni Moragas
DOI:10.1055/s-0035-1560439
日期:——
Abstract A nickel-catalyzed reductive carboxylation technique for the synthesis of cyclopropanecarboxylic acids has been developed. This user-friendly and mild transformation operates at atmospheric pressure of carbondioxide and utilizes either organic halides or alkene precursors, thus representing the first example of catalytic reductive carboxylation of secondary counterparts lacking adjacent π-components
Reversible Homolysis of a Carbon–Carbon σ-Bond Enabled by Complexation-Induced Bond-Weakening
作者:Suhong Kim、Pan-Pan Chen、K. N. Houk、Robert R. Knowles
DOI:10.1021/jacs.2c01229
日期:2022.8.31
bond-weakening is used to effect reversible carbon–carbon bond homolysis. Stereochemical isomerization of 1,2-disubstituted cyclopropanes was investigated as a model reaction with a ruthenium (III/II) redox couple adopted for bond weakening. Results from our mechanistic investigation into the stereospecificity of the isomerization reaction are consistent with selective complexation-induced carbon–carbon bond