Results 91 to 100 of about 29,722,087 (208)

Light-driven C–H activation mediated by 2D transition metal dichalcogenides

Nature Communications
C–H bond activation enables the facile synthesis of new chemicals. While C–H activation in short-chain alkanes has been widely investigated, it remains largely unexplored for long-chain organic molecules.
Jingang Li, Di Zhang, Zhongyuan Guo, Zhihan Chen, Xi Jiang, Jonathan M. Larson, Haoyue Zhu, Tianyi Zhang, Yuqian Gu, Brian W. Blankenship, Min Chen, Zilong Wu, Suichu Huang, Robert Kostecki, Andrew M. Minor, Costas P. Grigoropoulos, Deji Akinwande, Mauricio Terrones, Joan M. Redwing, Hao Li, Yuebing Zheng   +20 more
doaj   +1 more source

Rh(III)-Catalyzed Double Annulation of 3-Phenyl-1,2,4-oxadiazoles with 2-Diazo-1,3-diketones: Access to Pyran-Fused Isoquinolines

Molecules
Efficient access to pyranoisoquinoline derivatives via rhodium-catalyzed double C-H functionalization of phenyl oxadiazoles and diazo compounds has been developed.
Enshen Zhang, Mei Sun, Lvlv Gao
doaj   +1 more source

The role of basicity in selective C-H bond activation by transition metal-oxidos. [PDF]

Dalton Trans, 2023
Follmer AH, Borovik AS.
europepmc   +1 more source

Synthesizing active and durable cubic ceria catalysts (<6 nm) for fast dehydrogenation of bio-polyols to carboxylic acids coproducing green H2

Green Energy & Environment
Dehydrogenation is considered as one of the most important industrial applications for renewable energy. Cubic ceria-based catalysts are known to display promising dehydrogenation performances in this area.
Mengyuan Liu, Puhua Sun, Guangyu Zhang, Xin Jin, Chaohe Yang, Honghong Shan   +5 more
doaj   +1 more source

Direct Observation of a Picosecond Alkane C−H Bond Activation Reaction at Iridium

, 2016
Direct Observation of a Picosecond Alkane C−H Bond Activation Reaction at ...
Robert G. Bergman (1323120), Tianquan Lian (1298217), Joseph G. Cordaro (1280229), Jake S. Yeston (2982837), Kun Hang (2982840), John B. Asbury (1272033)   +5 more
core   +1 more source

o-Halogenation and -Alkoxylation of Phenylglycine Derivatives by Pd-Mediated C-H Functionalization: Scope and Limitations

Molecules
Orthopalladated derivatives from substituted phenylglycines [Pd(μ-Cl)(C6H3R1C(R2)(R3)N(R4)2]2 (1) react with halogenating reagents (PhICl2, Br2, I2) (2) to give the corresponding o-halogenated amino acids C6H3(X)R1C(R2)(R3)N(R4)2 (3).
Eduardo Laga, Sonia Nieto, Carlos Cativiela, Esteban P. Urriolabeitia   +3 more
doaj   +1 more source

Copper catalysis in arene and heteroarene functionalization through C-​H bond activation

, 2012
A review was given on providing a comprehensive overview on arene and heteroarene functionalization by C-​H bond activation. In general, reactions based on the use of a stoichiometric amt. of copper are not discussed herein. Copper-​catalyzed arene and
GOGGIAMANI, ANTONELLA, FABRIZI, Giancarlo, Cacchi Sandro, Giancarlo Fabrizi, Sandro Cacchi, Antonella Goggiamani   +5 more
core   +1 more source

Insights Into the Light‐Driven Conversion of Methane: Mechanisms, Characterization, and Perspective

EcoEnergy
Methane, recognized as a promising substitute for conventional fossil fuels due to its abundant availability, low cost, and high energy density, can be converted into value‐added products, providing a sustainable energy–carbon utilization approach ...
Jiayi Chen, Shiqin Gao, Tao Gan, Bolun Wang   +3 more
doaj   +1 more source

A theoretical study of alkane protonation in HF/SbF5 superacid system

Journal of the Brazilian Chemical Society, 2000
Ab initio calculations for the protonation of the C-H and C-C bonds of methane, ethane, propane and isobutane by a superacid moiety was carried out. For the C-H protonation (H/H exchange) the transition state resembles an H-carbonium ion coordinated with
Esteves Pierre M., Ramírez-Solís Alejandro, Mota Claudio J. A.   +2 more
doaj  

Palladium-mediated ligand-directed C-H bond activation and halogenation by mechanochemistry

Izravno i selektivno uvođenje funkcionalnih skupina postignuto zamjenom inertnih veza C–H jedan je od sintetskih koraka u pripremi brojnih organskih spojeva.
Barišić, Dajana
core