Results 41 to 50 of about 27,304,717 (282)

Distal Functionalization via Transition Metal Catalysis

open access: yesChemistry Proceedings, 2022
The ubiquitous presence of sp3 C−H bonds in natural feedstock makes them inexpensive, easily accessible, and attractive synthons for the preparation of common and/or complex molecular frameworks in biologically active natural products, pharmaceutics ...
Haibo Ge
doaj   +1 more source

Transition Metal Catalyzed C−H bond Activation as a Sustainable Strategy for The Synthesis of Fluorinated Molecules: An overview

open access: yes, 2023
International audienceThe last decade has witnessed the emergence of innovative synthetic tools for the synthesis of fluorinated molecules. Among these approaches, the transition metal catalyzed functionalization of various scaffolds with a panel of ...
Besset, Tatiana   +2 more
core   +1 more source

Organophotoredox-Catalyzed Direct C-H Functionalization of “Drug Prejudice” at Room Temperature [PDF]

open access: yes, 2020
Organophotocatalytic C─H bond functionalization has attracted lot of attention in the past several years due to the possibility of catalysing reactions in a metal-free environment.
Narendra, Chaubey   +2 more
core   +1 more source

Synthesis of Phthalides and α,β-butenolides by Transition Metal-Catalyzed Activation of C—H Bonds

open access: yesMolecules, 2019
Phthalides and α,β-butenolides are two related classes of oxygenated heterocycles with a wide range of biological activities. An innovative strategy to prepare these compounds is based on C—H bond functionalization reactions, in which two
Andrea Renzetti, Kozo Fukumoto
doaj   +1 more source

Cp∗Rh/Ag catalyzed C–H activation/cyclization sequences of NH-sulfoximines to fused aza-polyheterocycles under gentle conditions

open access: yesGreen Synthesis and Catalysis, 2023
Disclosed herein is a novel Rh/Ag co-catalyzed SNH directed C–H activation and C–H/N–H bond functionalization protocol of free NH-sulfoximines with hypervalent iodonium ylides.
Jiapian Huang   +4 more
doaj   +1 more source

Pushing the boundaries of C–H bond functionalization chemistry using flow technology

open access: yesJournal of Flow Chemistry, 2020
C–H functionalization chemistry is one of the most vibrant research areas within synthetic organic chemistry. While most researchers focus on the development of small-scale batch-type transformations, more recently such transformations have been carried ...
Sebastian Govaerts, A. Nyuchev, T. Noel
semanticscholar   +1 more source

Rhodium catalyzed chelation-assisted C-H bond functionalization reactions

open access: yesAccounts of Chemical Research, 2011
Conspectus Over the last several decades, researchers have achieved remarkable progress in the field of organometallic chemistry. The development of metal-catalyzed cross-coupling reactions represents a paradigm shift in chemical synthesis, and today ...
D. A. Colby   +3 more
semanticscholar   +1 more source

Radical‐Promoted Distal C‐H Functionalization of C(sp3) Centers with Fluorinated Moieties

open access: yes, 2020
International audienceDue to their unique properties, fluorinated scaffolds are pivotal compounds in pharmaceuticals, agrochemicals and materials science.
Tatiana Besset   +5 more
core   +1 more source

A general strategy for C(sp3)–H functionalization with nucleophiles using methyl radical as a hydrogen atom abstractor [PDF]

open access: yes, 2021
Photoredox catalysis has provided many approaches to C(sp3)-H functionalization that enable selective oxidation and C(sp3)-C bond formation via the intermediacy of a carbon-centered radical. While highly enabling, functionalization of the carbon-centered
Isabelle, Leibler   +5 more
core   +3 more sources

Controlling Site Selectivity in Palladium-Catalyzed C–H Bond Functionalization

open access: yesAccounts of Chemical Research, 2012
Conspectus Effective methodology to functionalize C–H bonds requires overcoming the key challenge of differentiating among the multitude of C–H bonds that are present in complex organic molecules.
S. Neufeldt, M. Sanford
semanticscholar   +1 more source

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