Nickel‐Catalyzed Decarboxylative C–Si Bond Formation: A Regioselective Cross‐Coupling Between Trialkyl Silanes and α,β‐Unsaturated Carboxylic Acids

2019 ◽  
Vol 33 (11) ◽  
Author(s):  
Bharat Kumar Allam ◽  
Sadaf Azeez ◽  
Jeyakumar Kandasamy
Keyword(s):  
Carboxylic Acids ◽  
Bond Formation ◽  
Cross Coupling ◽  
Unsaturated Carboxylic Acids

Pd-Catalyzed decarboxylative cross-coupling reactions of epoxides with α,β-unsaturated carboxylic acids

2019 ◽  
Vol 55 (74) ◽  
pp. 11123-11126 ◽  
Author(s):  
Xiao-Yu Lu ◽  
Jin-Song Li ◽  
Shi-Qun Wang ◽  
Yu-Jing Zhu ◽  
Yue-Ming Li ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Unsaturated Carboxylic Acids

A Pd-catalyzed decarboxylative cross-coupling of α,β-unsaturated carboxylic acids with cyclic and acyclic epoxides has been developed.

7,10-Dibromo-2,3-dicyanopyrazinophenanthrene Aggregates as a Photosensitizer for Nickel-Catalyzed Aryl Esterification

Synlett ◽  
2021 ◽  
Author(s):  
Xiaoqiang Yu ◽  
Min He ◽  
Shilei Yang ◽  
Ming Bao
Keyword(s):  
Visible Light ◽  
Carboxylic Acids ◽  
Bond Formation ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Ni Catalyst ◽  
Coupling Reactions ◽  
Formation Reaction ◽  
Cross Coupling Reactions ◽  
Reaction Proceeds

AbstractSelf-assembled aggregates of 7,10-dibromo-2,3-dicyanopyrazinophenanthrene which act as a new organophotocatalyst in combination with Ni catalyst for the Caryl–Oacyl cross-coupling reactions of carboxylic acids with aryl halides are described. This visible-light-induced Caryl–Oacyl bond-formation reaction proceeds smoothly to afford aryl esters with satisfactory to excellent yields.

ChemInform Abstract: Nickel-Catalyzed sp3C-H Bond Activation from Decarboxylative Cross-Coupling of α,β-Unsaturated Carboxylic Acids with Amides.

ChemInform ◽  
2014 ◽  
Vol 45 (52) ◽  
pp. no-no
Author(s):  
Jia-Xiang Zhang ◽  
Yan-Jing Wang ◽  
Nai-Xing Wang ◽  
Wei Zhang ◽  
Cui-Bing Bai ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Bond Activation ◽  
Cross Coupling ◽  
Unsaturated Carboxylic Acids

scholarly journals Selective Nickel- and Manganese-Catalyzed Decarboxylative Cross Coupling of Some α,β-Unsaturated Carboxylic Acids with Cyclic Ethers

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Jia-Xiang Zhang ◽  
Yan-Jing Wang ◽  
Wei Zhang ◽  
Nai-Xing Wang ◽  
Cui-Bing Bai ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Cross Coupling ◽  
Cyclic Ethers ◽  
Unsaturated Carboxylic Acids

Design and Development of Fe-Catalyzed Intra- and Intermolecular Carbofunctionalization of Vinyl Cyclopropanes

2019 ◽  
Author(s):  
Lei Liu ◽  
Wes Lee ◽  
Mingbin Yuan ◽  
Chris Acha ◽  
Michael B. Geherty ◽  
...  
Keyword(s):  
Bond Formation ◽  
Cross Coupling ◽  
Alkyl Halides ◽  
Grignard Reagents ◽  
Mechanistic Studies ◽  
Radical Intermediates ◽  
Design And Implementation ◽  
Solvent Cage ◽  
Radical Cascade ◽  
Radical Processes

Design and implementation of the first (asymmetric) Fe-catalyzed intra- and intermolecular difunctionalization of vinyl cyclopropanes (VCPs) with alkyl halides and aryl Grignard reagents has been realized via a mechanistically driven approach. Mechanistic studies support the diffusion of the alkyl radical intermediates out of the solvent cage to participate in an intra- or -intermolecular radical cascade with the VCP followed by re-entering the Fe radical cross-coupling cycle to undergo selective C(sp2)-C(sp3) bond formation. Overall, we provide new design principles for Fe-mediated radical processes and underscore the potential of using combined computations and experiments to accelerate the development of challenging transformations.

Perturbation theory of substituent effect. Importance of the field effect in transmission of the substituent effect

1980 ◽  
Vol 45 (6) ◽  
pp. 1655-1661 ◽  
Author(s):  
Robert Ponec
Keyword(s):  
Perturbation Theory ◽  
Carboxylic Acids ◽  
Quantum Chemical ◽  
Substituent Effect ◽  
Field Effect ◽  
Adequate Description ◽  
Meta Position ◽  
Unsaturated Carboxylic Acids

Various quantum chemical approaches to the problem of transmission of the substituent effect were compared. It was shown that inclusion of the electronic repulsion (field effect) was necessary to give a true picture of differences in ρ constants for reactions of the cis and trans isomers of substituted unsaturated carboxylic acids; the same holds for an adequate description of transmission of the substituent effect from the meta position on a given skeleton.

Sign in / Sign up

Export Citation Format

Share Document