Results 111 to 120 of about 119,767 (324)

Fe‐Photocatalyzed Decarboxylative Giese‐Type Reaction of α‐N, O or S Carboxylic Acids: Insight into the Mechanism of the Radical Formation

Advanced Synthesis &Catalysis, EarlyView.
Electron‐deficient alkenes can be functionalized with α‐amino, α‐alkoxy and α‐alkylthio radicals formed by Fe‐photocatalyzed decarboxylation of the corresponding carboxylic acids. The reactions proceed under smooth ligandless conditions with inexpensive base and in the absence of oxidant. A mechanistic computational TD‐DFT study supports the occurrence
Fernando Pérez‐Maseda, María Martín, Jorge Labrador‐Santiago, Inés Corral, Diego J. Cárdenas   +4 more
wiley   +1 more source

Epoxidation of cyclohexene with cyclohexyl hydroperoxide

Тонкие химические технологии
Objectives. To investigate the regularities of the process of joint production of epoxycyclohexane, cyclohexanol, and cyclohexanone using the cyclohexene epoxidation reaction with cyclohexyl hydroperoxide in the presence of an ammonium paramolybdate ...
E. A. Kurganova, A. S. Frolov, S. A. Kanaev, G. N. Koshel, A. A. Petukhov, G. V. Rybina, V. V. Plakhtinskii, V. S. Kabanova, A. A. Smurova   +8 more
doaj   +1 more source

Non-Existence of Multiplanar Cyclohexane Rings [PDF]

, 1936
R. D. Desai, R. F. Hunter
openalex   +1 more source

Thioether Synthesis via the Nickel‐Catalyzed Electrochemical Cross Electrophile Coupling of Aryl/Alkyl Disulfides and Aryl/Alkyl Halides

Advanced Synthesis &Catalysis, EarlyView.
A nickel catalyzed electrochemical cross‐electrophile coupling approach for the base‐free synthesis of (un)symmetric (hetero)aryl and alkyl sulfides from organic halides and disulfides is described. The reaction is broadly applicable and tolerates water and air atmosphere. A formal cross‐electrophile coupling approach enables the base‐free synthesis of
Jona Queder, Gerhard Hilt
wiley   +1 more source

Photoredox‐Catalyzed Synthesis of a Novel Class of Fluoroalkyl Pyrazolones

Advanced Synthesis &Catalysis, EarlyView.
A photoredox strategy enables regioselective synthesis of fluoroalkyl 2‐pyrazolin‐5‐ones via radical addition and cyclization. This mild, metal‐free method shows a broad substrate scope, operates in batch and flow systems, and offers a sustainable approach to fluorinated heterocycles with potential applications in medicinal chemistry.
Emanuele F. Pissinati, Meysam Azizzade, Till Opatz, Márcio W. Paixão   +3 more
wiley   +1 more source

Analysis of Higher Overtone Vibrational Frequencies in Cyclohexane Using a Lie Algebraic Approach

East European Journal of Physics
This study contains a sophisticated computational approach to predict cyclohexane while maintaining the D3d point group symmetry higher overtone vibrational frequencies (C6H12), precisely, third, fourth, and fifth.
J. Vijayasekhar, M.V. Subba Rao, T. Sreenivas   +2 more
doaj   +1 more source

Ortho-para spin conversion of Ps by paramagnetic O2 dissolved in organic compounds

Nukleonika, 2015
The o-Ps mean lifetime value in liquids decreases in the presence of the paramagnetic oxygen molecules via the ortho-para conversion process. This effect was observed for several organic samples composed of carbon and hydrogen atoms differing in the ...
Zgardzińska Bożena, Białko Wioletta, Jasińska Bożena   +2 more
doaj   +1 more source

N‐Containing Carbon Materials in Metal‐Free and Non‐Noble Metal Liquid Phase Heterogenous Catalysis

Advanced Synthesis &Catalysis, EarlyView.
Over 100 examples of non‐noble metal supported on N‐containing and metal‐free N‐containing carbon catalysts are discussed. Particular emphasis is put on how different N‐functionalities influence catalyst performance and stability. Preparation procedures are also examined, with a strong focus on how the heat treatment temperature influences N ...
Fulvio Varamo, Anna Katharina Beine
wiley   +1 more source

Comparative Bioremediation of Tetradecane, Cyclohexanone and Cyclohexane by Filamentous Fungi from Polluted Habitats in Kazakhstan

Journal of Fungi
Studying the fates of oil components and their interactions with ecological systems is essential for developing comprehensive management strategies and enhancing restoration following oil spill incidents.
Mariam Gaid, Wiebke Jentzsch, Hannah Beermann, Anne Reinhard, Mareike Meister, Ramza Berzhanova, Togzhan Mukasheva, Tim Urich, Annett Mikolasch   +8 more
doaj   +1 more source

Gas‐ and Liquid‐Phase Catalysts for Solar‐Driven Catalytic Ammonia Decomposition

Advanced Sustainable Systems, EarlyView.
Amid the drive toward carbon‐neutral hydrogen, this review analyzes photocatalytic ammonia decomposition in gas‐ and liquid‐phase systems. It examines catalyst families—TiO2, ZnO, Ru, single‐atom, and antenna–reactor designs. This study summarizes advances in bandgap tuning, active‐site and cocatalyst engineering, photothermal coupling, and machine ...
Zhuohao Yang, Xuechen Jing, Ruhan Liu, Zhipeng Cao, Zongyou Yin   +4 more
wiley   +1 more source