Results 61 to 70 of about 899 (191)

Nickel-catalysed carbonylative homologation of aryl iodides [PDF]

, 2018
Homologation is an important organic transformation which extends the carbon chain of a parent molecule, and many procedures have been established. However, although carbonylation reactions are now well developed as valuable methods for the synthesis of ...
Peng, J.-B., Qi, X., Wu, F.-P., Wu, X.-F., Ying, J.   +4 more
core   +1 more source

Enabling Base‐Free Direct C–H Arylation of Thiophene Derivatives: Glycerol‐Derived Solvents as Active Reaction Media

ChemSusChem, Volume 19, Issue 9, 14 May 2026.
Sustainable glycerol‐based solvents are effective reaction media for the Pd‐catalysed direct CH arylation of thiophene derivatives. Among them, glycerol‐derived ionic liquids act as noninnocent solvents, making the reaction base‐free, and the combination with Pd nanoparticles allows for multicycle process. Nonvolatile glycerol derivatives are employed
Sara Gracia‐Barberán, Stefano Nejrotti, Alejandro Leal‐Duaso, Barbara Centrella, Alessandra Sanson, José A. Mayoral, Claudia Barolo, Elísabet Pires, Matteo Bonomo   +8 more
wiley   +1 more source

1,4‐Pentanediol as an Alternative Biomass‐Derived Medium for the Phosphine‐Free Heck Coupling Reactions

ChemSusChem, Volume 19, Issue 9, 14 May 2026.
In this research, a phosphine‐free Heck coupling reaction was performed using biomass‐derived 1,4‐pentanediol and a polar protic solvent. It was demonstrated that a wide scope of products could be isolated by a simple filtration, eliminating the high‐solvent‐consuming column chromatography and reducing the E‐factor by more than 90% compared to ...
Csaba Árvai, László T. Mika
wiley   +1 more source

A Cathodic Hydrogen Atom Transfer Strategy for Electrochemical Carboxylation of Dibenzylic C(sp3)H Bonds With CO2

ChemElectroChem, Volume 13, Issue 9, 5 May 2026.
A cathodically generated hydrogen atom transfer (HAT) strategy for the electrochemical carboxylation of dibenzylic C(sp3)H bonds with CO2 is developed. This strategy enables all key steps to occur at the same cathode, allowing efficient carboxylation under mild conditions.
Yuto Maeji, Toshimichi Kobayashi, Kento Kosugi, Yutaka Saga, Masanari Hirahara, Mio Kondo, Tetsuya Kambe, Shigeyuki Masaoka   +7 more
wiley   +1 more source

Multifunctional, tunable catalysts from interfacially cross-linked reverse micelles [PDF]

, 2014
My Ph.D. research is focused on design and synthesis of interfacially cross-linked reverse micelles (ICRMs), which were stable core-shell organic nanoparticles with tunable properties. The size of their hydrophilic core, the alkyl density on the surface,
Lee, Li-Chen
core   +2 more sources

Heck reaction catalyzed by Pd/C, in a triphasic organic/Aliquat 336/aqueous solvent system [PDF]

, 2004
The rate of the Pd/C catalyzed Heck coupling of Ar-I with CH2CH-R is accelerated tenfold by the presence of Aliquat 336 (A336), a well known phase transfer catalyst, and an ionic liquid. Both when conducted in A336 as solvent, and in an isooctane/A336/
Alberto Testa, Alvise Perosa, Beletskaya, Bhanage, Cai, Carmichael, Chandrasekhar, Chandrasekhar, Corma, Demeter, Devadoss, Hagiwara, Handy, Herrmann, Jeffery, Jeffery, Jeffery, Kaufmann, Kivihao, Marques, Marques, Marques, Marques, Maurizio Selva, Mukhopadhyay, Perosa, Pietro Tundo, Ramchandani, Selva, Sergei Zinovyev, Srivastava, Tundo, Tundo, Tundo, Wall, Zhao, Zhao, Zhao, Zinovyev   +38 more
core   +2 more sources

UV photodissociation dynamics of iodobenzene: Effects of fluorination

The Journal of Chemical Physics, 2012
The UV photochemistry of various fluorinated iodobenzenes (4-fluoro-, 2,4-difluoro-, 3,5-difluoro-, and perfluoro-iodobenzene) has been investigated at many wavelengths by velocity map imaging, time-resolved near infrared absorption spectroscopy and (spin-orbit resolved) ab initio calculations of the ground and excited state potentials along the C–I ...
Murdock, Daniel, Crow, Martin B., Ritchie, Grant A. D., Ashfold, Michael N. R.   +3 more
openaire   +3 more sources

Manganese Porphyrin‐Catalyzed One‐Pot Oxidation of Lupeol: Efficient Conversion of Its Terminal Alkene Into Carboxylic Acids

Chemistry &Biodiversity, Volume 23, Issue 5, May 2026.
Manganese porphyrin catalyst enables green PhI(OAc)2 oxidation of lupeol in ethyl acetate, achieving 94% conversion and the formation of eight products, including selective C20 olefin transformations and one‐pot conversion of the isopropenyl group to carboxylic acids, all without the need of C3‐OH protection step.
Leila Renan Oliveira, Pedro Fonseca‐Pinheiro, Lucienir Pains Duarte, Diogo Montes Vidal, Grasiely Faria de Sousa, Dayse Carvalho da Silva Martins   +5 more
wiley   +1 more source

Cyrene Dimethyl Acetal: Potential Alternative Solvent for Pd‐Catalyzed Homogeneous Aminocarbonylation of Iodo(hetero)arene Compounds

ChemPlusChem, Volume 91, Issue 5, May 2026.
Insert text for Table of Contents here. In this research, the synthesis of new Cyrene derivatives (Cyrene dimethyl acetal and Cyrene diethyl acetal) was accomplished, and the investigation of their physicochemical properties was completed. It was also shown after a detailed optimization study that Cyrene dimethyl acetal could be an appropriate ...
Attila Takács, Nuray Uzunlu Ince, Zoltán Medgyesi, Huda Hamed, László Kollár, Bence Mihalovics, László T. Mika   +6 more
wiley   +1 more source

Recent Advances in Nickel Catalysts for Sonogashira Coupling

ChemistryOpen, Volume 15, Issue 5, May 2026.
The Sonogashira coupling, catalyzed by transition metals, has become a valuable method for forming carbon‐carbon bonds. Nickel has gained considerable interest due to its lower cost and more environmentally friendly profile compared to palladium.
Sara Payamifar, Pegah Etminan, Ahmad Poursattar Marjani   +2 more
wiley   +1 more source