Results 271 to 280 of about 29,655,632 (304)

Catalytic activation of aromatic CH bonds

Journal of Organometallic Chemistry, 1982
Abstract A new reaction is described, involving oxidative addtion of aromatic bromides to palladium(O), two successive insertions of norbornene, and ring closure to the aromatic carbon ortho to the carbon originally bearing the bromine.
CATELLANI, Marta, CHIUSOLI, Gian Paolo
openaire   +2 more sources

The Chemistry of CH Bond Activation on Diamond

Chemistry – An Asian Journal, 2010
AbstractThe surface of hydrogen‐terminated diamond resembles a solid hydrocarbon substrate. Interestingly, the CH bonds on the diamond surface are not as unreactive as that of saturated hydrocarbon molecules owing to its unique surface electronic properties.
Yu Lin, Zhong, Kian Ping, Loh
openaire   +2 more sources

Intramolecular C−H Activation Reactions of Molybdenacyclobutanes

Journal of the American Chemical Society, 2006
Molybdenacyclobutane complexes can be prepared by reaction of Cp*Mo(NO)(=CHCMe3) (formed spontaneously by loss of neopentane from Cp*Mo(NO)(CH2CMe3)2 (1) under ambient conditions) with cyclic olefins, including cyclopentene, cycloheptene, and cyclooctene. The cyclopentene metallacyclobutane orients the metallacycle bridgehead protons cis to each other.
Peter M, Graham, Miriam S A, Buschhaus, Peter, Legzdins   +2 more
openaire   +2 more sources

Photocatalysis in C-H Activation

1993
The catalytic chemistry of organometallic complexes usually depends on coordinative unsaturation. Most substrates can only bind if an empty orbital is available on the metal to receive it. One way in which photochemistry can facilitate catalysis is to generate coordinative unsaturation by photoextrusion of a ligand. Photoextrusion of CO and H2 are both
openaire   +1 more source

C-H activation: Good things come in threes.

Nature chemistry, 2016
Three different methods that use a single ruthenium catalyst to enable the facile formation of meta- and para-substituted alkenylarenes have now been developed. The reactions proceed through a tandem alkenylation/decarboxylation process and provide several advantages over alternative approaches.
Simonetti, Marco, Larrosa, Igor
openaire   +3 more sources

A survey on modern trainable activation functions

Neural Networks, 2021
Francesco Isgrò, Roberto Prevete, Andrea Apicella   +2 more
exaly  

C—H Activation

2012
D. A. Alonso, C. Nájera
openaire   +1 more source

Challenges and Breakthroughs in Selective Amide Activation

Angewandte Chemie - International Edition, 2022
Nuno Maulide
exaly  

C–H activation

Nature, 2007
openaire   +1 more source

High-efficiency degradation of carbamazepine by the synergistic electro-activation and bimetals (FeCo@NC) catalytic-activation of peroxymonosulfate

Applied Catalysis B: Environmental, 2023
Jiana Jing, Huizhong Wu
exaly