Results 41 to 50 of about 105,486 (290)

Direct C–H trifluoromethylation of di- and trisubstituted alkenes by photoredox catalysis

open access: yesBeilstein Journal of Organic Chemistry, 2014
Background: Trifluoromethylated alkene scaffolds are known as useful structural motifs in pharmaceuticals and agrochemicals as well as functional organic materials.
Ren Tomita   +3 more
doaj   +1 more source

Application of Transition Metal Catalysis to Small Molecule Synthesis [PDF]

open access: yes, 2006
Over the past decade, transition metal catalysis has developed into a new field in organic synthesis, enabling numerous synthetic transformations that were previously not feasible.
Morrill, Christie
core   +1 more source

Synthesis of Binary Ti-Si Mixed Oxides Nanoparticles with Rutile Structure as Selective Catalyst for Epoxidation of Alkenes [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2007
The nanoparticles of Ti-Si mixed oxides (NTSO) with Rutile structure were prepared by sol-gel method in a mixture of alcohol and water as solvent. The solid product was characterized by XRD, FTIR, SEM, TEM, UV, TGA and laser Raman spectroscopy.
F. Farzaneh
doaj  

Alkenes

open access: yes, 2014
Citation: 'alkenes' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00224 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage
Robert J. Ouellette, J. David Rawn
  +4 more sources

Catalytic Enantioselective Addition of Organozirconium Reagents to Aldehydes

open access: yesMolecules, 2018
A catalytic enantioselective addition reaction of alkylzirconium species to aromatic aldehydes is reported. The reaction, facilitated by a chiral nonracemic diol ligand complex with Ti(OiPr)4, proceeds under mild and convenient conditions, and no premade
Ricard Solà   +5 more
doaj   +1 more source

Factors affecting the extent of branching in fischertropsch synthesis products with iron-based catalysts [PDF]

open access: yes, 1989
Branched products are mainly formed during secondary isomerization reactions, and not in the main synthesis reaction itself. The extent of branching is a function of the catalyst formulation. High acidity and a low hydrogenation strength of the catalyst (
Snel, R.
core   +2 more sources

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

open access: yesAdvanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu   +2 more
wiley   +1 more source

Lewis acid catalyzed transfer hydromethallylation for the construction of quaternary carbon centers [PDF]

open access: yes, 2019
The design and gram‐scale synthesis of a cyclohexa‐1,4‐diene‐based surrogate of isobutene gas is reported. Using the highly electron‐deficient Lewis acid B(C6F5)3, application of this surrogate in the hydromethallylation of electron‐rich styrene ...
Oestreich, Martin   +1 more
core   +1 more source

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Photocatalytic Hydrogenation of Alkenes Using Water as Both the Reductant and the Proton Source

open access: yesAdvanced Science
Utilization of clean and low‐cost water as the reductant to enable hydrogenation of alkenes is highly attractive in green chemistry. However, this research subject is considerably challenging due to the sluggish kinetics of the water oxidation half ...
Xinzhe Tian   +3 more
doaj   +1 more source

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