Conjugateddienes underwent Ni-catalyst-promoted 1,2-hydrocarboxylation in a 1:1ratio with carbon dioxide under atmospheric pressure in the presence of diisobutylaluminum hydride (DIBAL-H) to give the corresponding β,γ-unsaturated carboxylic acids, without dimerization or oligomerization of the conjugateddiene.
Cp<sub>2</sub>TiCl<sub>2</sub>-Catalyzed Regioselective Hydrocarboxylation of Alkenes with CO<sub>2</sub>
作者:Peng Shao、Sheng Wang、Chao Chen、Chanjuan Xi
DOI:10.1021/acs.orglett.6b00665
日期:2016.5.6
Cp2TiCl2-catalyzed regioselective hydrocarboxylation of alkenes with CO2 to give carboxylic acids in high yields has been developed in the presence of iPrMgCl. The reaction proceeds with a wide range of alkenes under mild conditions. Styrene and its derivatives can transform to α-aryl carboxylic acids, and aliphatic alkenes can transform to form alkanoic acids.