Results 11 to 20 of about 45,483 (213)
Co(III) Intermediates in Cobalt-Catalyzed, Bidentate Chelation Assisted C(sp2)-H Functionalizations
The C-H bond activation and functionalization is a powerful tool that provides efficient access to various organic molecules. The cobalt-catalyzed oxidative C-H bond activation and functionalization has earned enormous interest over the past two decades.
Aleksandrs Cizikovs, Liene Grigorjeva
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Selectively activating the distal inactive C-H bond for functionalization is one of the on-going challenge in organic synthetic chemistry. In recent years, benefiting from the development of selective synthesis methods, novel methodologies not only make ...
Huang Junrong +11 more
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Transition Metal-Catalyzed Remote C–H Bond Functionalization of Cyclic Amines
C–H bond functionalization is one of the most effective strategies for the rapid synthesis of cyclic amines containing substituents in the ring, which are core structures of many bioactive molecules. It is, however, much more challenging to perform this
Weijie Chen, Xiaoyu Yang, Xi Cao
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Tuning Benzylic C−H Functionalization of (Thio)xanthenes with Electrochemistry
Here, we report a tunable electrochemical benzylic C−H functionalization of (thio)xanthenes with terminal alkynes and nitriles in the absence of any catalyst or external chemical oxidant.
Changji Wang +4 more
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Strategies to transform remote C(sp3)-H bonds of amino acid derivatives
Amino acids and peptides play an important role in nature as well as in the pharmaceutical industry. Therefore, transformation of amino acids and peptides into their unnatural derivatives via step and atom economical ways is highly demanding. Although, a
Supreeta Sen +2 more
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Coumarins Synthesis and Transformation via C–H Bond Activation—A Review
For several decades, coumarins have attracted considerable attention due to the fact of their application in diverse fields such as medical science and biomedical research as well as several industrial branches.
Katarzyna Szwaczko
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A Simple Access to γ‐ and ε‐Keto Arenes via Enzymatic Divergent C─H Bond Oxyfunctionalization
Performing divergent C─H bond functionalization on molecules with multiple reaction sites is a significant challenge in organic chemistry. Biocatalytic oxyfunctionalization reactions of these compounds to the corresponding ketones/aldehydes are typically
Huanhuan Li +6 more
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Methods to functionalize inert C–H bonds are a critical focus of synthetic organic chemistry. In this work the authors use computations and experiments to uncover the mechanisms of palladium-catalysed C–H lactonizations in aromatic carboxylic acids, and ...
Li-Ping Xu +4 more
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Distal Functionalization via Transition Metal Catalysis
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
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Synthesis of Phthalides and α,β-butenolides by Transition Metal-Catalyzed Activation of C—H Bonds
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
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