Results 271 to 280 of about 29,149,024 (329)

Room-Temperature C–H Bond Functionalization by Merging Cobalt and Photoredox Catalysis

ACS Catalysis, 2018
A non-noble metal-free protocol has been developed for C–H bond functionalization at room temperature by merging cobalt-mediated catalysis with photocatalysis. The reaction requires only oxygen as sole oxidant and operated at room temperature under redox-
Deepti Kalsi, S. Dutta, Nagaraju Barsu, M. Rueping, Basker Sundararaju   +4 more
semanticscholar   +1 more source

Borylation and Silylation of C–H Bonds: A Platform for Diverse C–H Bond Functionalizations

Accounts of Chemical Research, 2011
Methods that functionalize C-H bonds can lead to new approaches for the synthesis of organic molecules, but to achieve this goal, researchers must develop site-selective reactions that override the inherent reactivity of the substrates. Moreover, reactions are needed that occur with high turnover numbers and with high tolerance for functional groups if
openaire   +2 more sources

para-Selective C–H bond functionalization of iodobenzenes

Chemical Communications, 2016
An oxidation-induced strategy for para -C–H functionalization of iodobenzenes was demonstrated, which provides a general idea for the development of new, highly selective para -C–H functionalization reactions.
Ying, Zhao, Haiming, Yan, Hanwei, Lu, Zhiliang, Huang, Aiwen, Lei   +4 more
openaire   +2 more sources

1.3 C—H Bond Functionalization

2017
AbstractThis chapter deals with C—H bond functionalization catalyzed by N-heterocyclic carbene transition-metal complexes. The C—H bond functionalizations have been classified with respect to the hybridization of the carbon atom and the reaction type.
M. Elie, J.-L. Renaud, S. Gaillard
openaire   +1 more source

Functionalization of Remote CH Bonds: Expanding the Frontier

Angewandte Chemie International Edition, 2014
Novel tool set: New methodologies for the functionalization of remote CH bonds have been developed recently. In diverse approaches high selectivities are achieved for the functionalization of less reactive C(sp(2) )H as well as C(sp(3) )H bonds distal to any substituents.
Johannes, Schranck, Anis, Tlili, Matthias, Beller   +2 more
openaire   +2 more sources

Activation and Deactivation Strategies Promoted by Medium Effects for Selective Aliphatic C-H Bond Functionalization.

Angewandte Chemie, 2018
Selective functionalization of unactivated aliphatic C-H bonds represents an important goal of modern synthetic chemistry. Differentiating between such bonds in organic molecules with high levels of selectivity remains a crucial issue, and a profound ...
M. Bietti
semanticscholar   +1 more source

Catalytic C−H Bond Stannylation: A New Regioselective Pathway to C−Sn Bonds via C−H Bond Functionalization

Journal of the American Chemical Society, 2010
The ubiquitous Stille coupling reaction utilizes Sn-C bonds and is of great utility to organic chemists. Unlike the B-C bonds used in the Miyaura-Suzuki coupling reaction, which are readily obtained via direct borylation of C-H bonds, routes to organotin compounds via direct C-H bond functionalization are lacking.
Meghan E, Doster, Jillian A, Hatnean, Tamara, Jeftic, Sunjay, Modi, Samuel A, Johnson   +4 more
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Flow Chemistry Perspective for C H Bond Functionalization

2017
In this chapter, we give an overview of the use of continuous-flow reactors for C. H activation chemistry.
Laudadio, G., Noël, T.
openaire   +1 more source

Nickel complexes for catalytic C–H bond functionalization

Dalton Transactions, 2015
A search for fundamental understanding of how Ni complexes can be designed to undergo challenging C–H activation reactions provides an entry into unprecedented C–H functionalization reactions.
openaire   +2 more sources

Donor-Acceptor-Donor NIR II Emissive Rhodindolizine Dye Synthesized by C-H Bond Functionalization.

Journal of Organic Chemistry, 2019
A NIR II emissive dye was synthesized by the C-H bond functionalization of 1-methyl-2-phenylindolizine with 3,6-dibromoxanthene. The rhodindolizine (RhIndz) spirolactone product was non-fluorescent; however, upon opening of the lactone ring by the ...
Chathuranga Rathnamalala, J. Gayton, Austin L. Dorris, Shane A. Autry, William E. Meador, N. Hammer, J. Delcamp, C. Scott   +7 more
semanticscholar   +1 more source