Results 261 to 270 of about 29,149,024 (329)

C-H Bond Functionalization in Complex Organic Synthesis

Science, 2006
Direct and selective replacement of carbon-hydrogen bonds with new bonds (such as C–C, C–O, and C–N) represents an important and long-standing goal in chemistry. These transformations have broad potential in synthesis because C–H bonds are ubiquitous in organic substances. At the same time, achieving selectivity among many different C–H bonds remains a
Kamil Godula, D. Sames
semanticscholar   +3 more sources

Introduction to Selective Functionalization of C−H Bonds

Chemical Reviews, 2010
Robert H. Crabtree
exaly   +3 more sources

C-H Bond Functionalization by Mechanochemistry.

Chemistry – A European Journal, 2017
AbstractThe advances made in the mechanosynthesis of inorganic and organometallic complexes and the excellent past developments with metal‐catalyzed cross‐coupling reactions by high‐speed ball milling have sufficienly laid the ground work for the merging of C−H functionalization and mechanochemical techniques.
José G. Hernández
semanticscholar   +3 more sources

Bidentate Directing Groups: An Efficient Tool in C-H Bond Functionalization Chemistry for the Expedient Construction of C-C Bonds.

Chemical Reviews, 2020
During the past decades, synthetic organic chemistry discovered that directing group assisted C-H activation is a key tool for the expedient and siteselective construction of C-C bonds.
Supriya Rej, Y. Ano, N. Chatani
semanticscholar   +1 more source

Visible Light-Induced C−H Bond Functionalization: A Critical Review

Advanced Synthesis and Catalysis, 2018
Kadalipura P Rakesh, Hua-Li Qin, Wan-Yin Fang   +2 more
exaly   +2 more sources

Functionalization of C-H Bonds by Photoredox Catalysis

The Chemical Record, 2017
Visible-light photoredox catalysis has been successfully used in the functionalization of inert C-H bonds including C(sp2 )-H bonds of arenes and C(sp3 )-H bonds of aliphatic compounds over the past decade. These transformations are typically promoted by the process of single-electron-transfer (SET) between substrates and photo-excited photocatalyst ...
Qixue, Qin, Heng, Jiang, Zhentao, Hu, Daan, Ren, Shouyun, Yu   +4 more
openaire   +2 more sources

N-Centered Radical Directed Remote C-H Bond Functionalization via Hydrogen Atom Transfer.

Chemistry - An Asian Journal, 2020
The N-centered radical directed remote C-H bond functionalization via hydrogen-atom-transfer at distant sites has developed as an enormous potential tool for the organic synthetic chemists.
Gautam Kumar, Sumanta Pradhan, I. Chatterjee   +2 more
semanticscholar   +1 more source

Direct, Site-Selective and Redox-Neutral α-C-H Bond Functionalization of Tetrahydrofurans via Quantum Dots Photocatalysis.

Angewandte Chemie, 2021
As one of the most ubiquitous bulk reagents available, the intrinsic chemical inertness of tetrahydrofuran (THF) makes direct and site-selective C(sp 3 )-H bond activation difficult, especially under redox neutral condition.
Li-Zhu Wu, J. Qiao, Ziwei Song, Cheng Huang, Rui‐Nan Ci, Zan Liu, Bin Chen, C. Tung   +7 more
semanticscholar   +1 more source

Asymmetric C–H Bond Functionalization of Ferrocenes: New Opportunities and Challenges

, 2020
Ferrocene is of great significance in the fields of organic synthesis, materials science, and biomedical research. Of particular importance is the fact that ferrocenes with planar chirality have proven to be privileged ligands or catalysts for asymmetric
Chen-Xu Liu, Q. Gu, S. You
semanticscholar   +1 more source

Catalytic Gold Chemistry: From Simple Salts to Complexes for Regioselective C-H Bond Functionalization.

Chemistry, 2021
Gold coordinated to neutral phosphines (R 3 P), N -heterocyclic carbenes (NHCs) or anionic ligands is catalytically active in functionalizing various C-H bonds with high selectivity.
C. Praveen, A. Dupeux, V. Michelet
semanticscholar   +1 more source