Results 11 to 20 of about 6,068,014 (260)

DABCO-promoted photocatalytic C–H functionalization of aldehydes

open access: yesBeilstein Journal of Organic Chemistry, 2021
Herein we present a direct application of DABCO, an inexpensive and broadly accessible organic base, as a hydrogen atom transfer (HAT) abstractor in a photocatalytic strategy for aldehyde C–H activation.
Bruno Maia da Silva Santos   +4 more
doaj   +1 more source

Functionalization of Porphyrins Using Metal-Catalyzed C–H Activation

open access: yesInorganics, 2022
The review is devoted to the C–H functionalization of porphyrins. Porphyrins exhibit the properties of organic semiconductors, light energy converters, chemical and electrochemical catalysts, and photocatalysts.
Aleksey N. Kiselev   +3 more
doaj   +1 more source

Recent Advances in C–H Functionalization of Pyrenes

open access: yesChemistry, 2023
In recent years, transition metal-catalyzed C–H activation and site-selective functionalization have been considered to be valuable synthetic tactics to functionalize organic compounds containing multiple C–H bonds.
Srinivasarao Arulananda Babu   +2 more
doaj   +1 more source

Regioselective aliphatic C–H functionalization using frustrated radical pairs

open access: yesNature, 2023
Frustrated Lewis pairs (FLPs) are well documented for the activation of small molecules such as dihydrogen and carbon dioxide^ 1 – 4 . Although canonical FLP chemistry is heterolytic in nature, recent work has shown that certain FLPs can undergo single ...
Zhipeng Lu   +7 more
semanticscholar   +1 more source

Recent advances in metal catalyst- and oxidant-free electrochemical C-H bond functionalization of nitrogen-containing heterocycles

open access: yesFrontiers in Chemistry, 2022
The C-H functionalization of nitrogen-containing heterocycles has emerged as a powerful strategy for the construction of carbon-carbon (C-C) and carbon-heteroatom (C-X) bonds.
Ya-Nan Li   +4 more
doaj   +1 more source

Transannular C–H Functionalization of Cycloalkane Carboxylic Acids

open access: yesNature, 2023
Cyclic organic molecules are common among natural products and pharmaceuticals^ 1 , 2 . In fact, the overwhelming majority of small-molecule pharmaceuticals contain at least one ring system, as they provide control over molecular shape, often increasing ...
Guowei Kang   +4 more
semanticscholar   +1 more source

C–H bond functionalization reactions enabled by photobiocatalytic cascades

open access: yesGreen Synthesis and Catalysis, 2021
Light may participate in biocatalytic processes either by direct light-induced biocatalysis or by cascading light-induced chemical reactions with biocatalytic ones, which are acknowledged as photocatalysis.
Yuanying Li   +3 more
doaj   +1 more source

Tuning Benzylic C−H Functionalization of (Thio)xanthenes with Electrochemistry

open access: yesMolecules, 2023
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
doaj   +1 more source

Recent advances in transition-metal-free C–H functionalization of imidazo[1,2-a]pyridines

open access: yesGreen Synthesis and Catalysis, 2022
Imidazo[1,2-a]pyridines are unique nitrogen-containing organic compounds with wide applications in pharmaceuticals, natural products, material science and organometallics.
Linlin Shi, Tiantian Li, Guang-Jian Mei
doaj   +1 more source

Weak Coordination as a Powerful Means for Developing Broadly Useful C–H Functionalization Reactions

open access: yesAccounts of Chemical Research, 2011
Conspectus Reactions that convert carbon–hydrogen (C–H) bonds into carbon–carbon (C–C) or carbon–heteroatom (C–Y) bonds are attractive tools for organic chemists, potentially expediting the synthesis of target molecules through new disconnections in ...
K. Engle, T. Mei, M. Wasa, jin-quan yu
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy