Carbon dioxide fixation by Cp2(η3-allyl)Ti complexes generated from various dienes
作者:Yuan Gao、Satoshi Iijima、Hirokazu Urabe、Fumie Sato
DOI:10.1016/0020-1693(94)03904-6
日期:1994.7
Abstract Cp2(η3-allyl)Ticomplexes having a variety of substituents on their allyl moieties were prepared from corresponding dienes, Cp2TiCl2, and Grignard reagents and were subjected to reaction with carbondioxide. The reaction of CO2 took place in a highly regioselective manner to give a single β, γ-unsaturated carboxylic acid of a few possible regioisomeric products after hydrolytic workup of the
Efficient One-to-One Coupling of Easily Available 1,3-Dienes with Carbon Dioxide
作者:Jun Takaya、Kota Sasano、Nobuharu Iwasawa
DOI:10.1021/ol2002094
日期:2011.4.1
reaction of atmospheric pressure carbon dioxide with 1,3-dienes is realized for the first time through PSiP-pincer type palladium-catalyzed hydrocarboxylation. The reaction is applicable to various 1,3-dienes including easily available chemical feedstock such as 1,3-butadiene and isoprene. This protocol affords a highly useful method for the synthesis of β,γ-unsaturated carboxylic acid derivatives from
Asymmetric carbon dioxide insertion into a π-allyltitanium(<scp>III</scp>) complex
作者:Fumie Sato、Satoshi Iijima、Masao Sato
DOI:10.1039/c39810000180
日期:——
A π-allyltitaniumcomplex with a chiral cyclo-pentadienyl ligand reacts with carbondioxide under mild conditions to form a carbon–carbon bond, thus providing that first demonstration of asymmetriccarbondioxide fixation.
Enecarboxylation with diethyl oxomalonate as an enophilic equivalent of carbon dioxide. A synthesis of allylcarboxylic acids
作者:Mary F. Salomon、Simon N. Pardo、Robert G. Salomon
DOI:10.1021/ja00325a014
日期:1984.6
On prepare une serie d'acides carboxyliques allyliques a partir des olefines correspondantes par un processus en deux etapes equivalent a: 1) une reaction ene avec l'oxomalonate de diethyle conduisant a l'ester α-hydroxymalonique; 2) une bisdecarboxylation oxydante de ce dernier
在制备 une serie d'acides carboxyliques allyliques a partir des ocoxyliques par un processus en deux etapes 等价物 a: 1) une 反应 ene avec l'oxomalonate de diethyle conduisant a l'ester α-hydroxymalonique; 2) une bisdecarboxylation oxydante de ce dernier
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.