Supported Single‐Atom Manganese Catalysts for the Trimerization of Ethylene
ChemCatChem, EarlyView.We explore Mn‐catalyzed ethylene oligomerization via oxidative cyclization. Density functional theory (DFT) predicts Mn/LiTiO₂ exhibits enhanced catalytic performance due to electronic modulation, which experimental validation confirms with higher conversion and hexene selectivity.
Yu Lim Kim +9 more
wiley +1 more source
Iridium-Catalyzed asymmetric hydrogenation : A: Studies on the synthesis of pyrazine-based P,N Ligands, B: Diastereoselective hydrogenation of chiral cyclohexenes [PDF]
, 2016 The synthesis of a new ligand class of pyrazine based ligands and their attempted complexation with iridium to form dimeric complexes is presented. Furthermore, the synthesis of chiral cyclohexenes by enantioselective Diels-Alder reactions is shown ...
Scheil, Robin
core +1 more source
Group I tert‐Amylates: A Comparative Study in Hydrophosphination Reactions
ChemCatChem, EarlyView.A comparative study of group I tert‐amylate precatalysts for hydrophosphination demonstrates increasing reactivity down the group to the first examples of rubidium and cesium in this reaction. Catalytic activity with lighter and more abundant elements, typified by potassium, can be enhanced with a crown ether, demonstrating the importance of ion ...
Diego R. Javier‐Jiménez +4 more
wiley +1 more source
The Choice of Polar Stationary Phases for Gas-Liquid Chromatography by Statistical Analysis of Retention Data [PDF]
, 2018 We have studied the retention indices of 127 volatile substances on a C78-paraffin and on its seven nearly isochor and isomorphous polar derivatives over a temperature range of 90-210°C.
Morgenthaler, Stephan +1 more
core
Metal-organic frameworks as selective or chiral oxidation catalysts [PDF]
, 2014 Since the discovery of Metal Organic Frameworks (MOFs) in the early 1990s, the amount of new structures has grown exponentially. A MOF typically consists of inorganic nodes that are connected by organic linkers to form crystalline, highly porous ...
Leus, Karen +2 more
core +1 more source
Highly Acyclic Selective Cobalt Catalysts for Butadiene Dimerization
ChemCatChem, EarlyView.A series of 11 cobalt(II) complexes were prepared and optimised for the linear selective dimerisation of butadiene to give 5‐methyl‐1,3,6‐heptatriene as the major product. The catalysts operated under mild reaction conditions, gave good reactivity and did not require the use of organometallic activators.
Joseph H. P. Cockcroft +5 more
wiley +1 more source
Halonium-Induced Polyene Cyclizations [PDF]
, 2019 International audienceThis review covers the methods that chemists have developed to access halogenated polycyclic structures from polyenes, by emulating Nature's enzymatic machineries.
Cariou, Kevin +3 more
core +2 more sources
Development of an Efficient Stereoretentive Para‐Claisen‐Cope Rearrangement
ChemistryEurope, EarlyView.The stereoretentive para‐Claisen‐Cope rearrangement enabled by Europium catalysis is presented, achieving precise phenol functionalization with exceptional chirality transfer under air‐ and moisture‐tolerant conditions. A novel carbonate unlocks superior enantioselectivity in the Tsuji‐Trost allylic alkylation, paving the way for highly enantioenriched
Johanna Breinsperger +3 more
wiley +1 more source
Synthesis and Properties of the Stereoisomeric Triethyl 2-Aminocyclohexane-1,5,5-tricarboxylates [PDF]
, 1975 Hydrogenation of triethyl 2-oxyiminocyclohexane-1,5,5-tricarboxylate (I) over Raney nickel in isopr-0panol afforded the two stereoisomeric triethyl 2-aminocyclohexane-1,5,5-tricarboxylates (II).
B. Djuras, V. Škarić, Đ. Škarić
core +3 more sources
Mesoporous Silica‐Based Photocatalytic Materials for Solar Energy Storage and Utilization
Carbon Energy, EarlyView.ABSTRACT The efficient storage and application of sustainable solar energy has drawn significant attention from both academic and industrial points of view. However, most developed catalytic materials still suffer from insufficient mass diffusion and unsatisfactory durability due to the lack of interconnected and regulatable porosity.
Rui Sun +5 more
wiley +1 more source