Results 71 to 80 of about 26,006 (279)

The investigation of optimum condition of natural rubber epoxidation reaction in latex phase

Majalah Kulit, Karet, dan Plastik, 2021
Natural rubber (NR) latex epoxidation is a chemical modifcation of natural rubber to produce natural rubber with higher polarity (oil resistant) which is commonly called epoxidized natural rubber (ENR). ENR is produced from the reaction of natural rubber
Norma Arisanti Kinasih, Hani Handayani, Mohammad Irfan Fathurrohman, Asron Ferdian Falaah   +3 more
doaj   +1 more source

Formation of Tetrahydrofurano-, Aryltetralin, and Butyrolactone Norlignans through the Epoxidation of 9-Norlignans

Molecules, 2020
Epoxidation of the C=C double bond in unsaturated norlignans derived from hydroxymatairesinol was studied. The intermediate epoxides were formed in up to quantitative conversions and were readily further transformed into tetrahydrofuran, aryltetralin ...
Patrik A. Runeberg, Dominique Agustin, Patrik C. Eklund   +2 more
doaj   +1 more source

Covalent Insertion of a Mn(Salen) Type Complex in Cross‐Linked Protein Crystals: Design of an Enantioselective Artificial Epoxidase

Chemistry – A European Journal, EarlyView.
An Artificial metalloenzyme was designed by a Michael addition between a MnSalen complex and a cysteine residue within NikA crystals. The heterogeneous catalyst was found capable of an enantioselective and stereospecific epoxidation of cis‐β‐methylstyrene in cristallo.
Manel Boukhallat, Ismail Benhamed, Jade Arnone, Stann Van Baaren, Clara Rinaldi, Patrice Catty, Caroline Marchi‐Delapierre, Christine Cavazza, Stéphane Ménage   +8 more
wiley   +1 more source

Síntese e caracterização de catalisadores óxidos metálicos para oxidação catalítica total de BTX (benzeno, tolueno e orto-xileno) e transformação química de monoterpenos [PDF]

, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.A pesquisa sobre o desenvolvimento de novas tecnologias que possibilitem a substituição das ...
Balzer, Rosana
core  

Macrocellular Titanosilicate Monoliths as Highly Efficient Structured Olefin Epoxidation Catalysts

, 2019
Self-standing macrocellular titanosilicate monolith foams are obtained using a one-pot sol-gel route and show excellent performance in the epoxidation of cyclohexene.
Tarek, Barakat, Ludivine van den, Biggelaar, Damien, Debecker, Valentin, Smeets, Eric M., Gaigneaux   +4 more
core   +1 more source

Direct acetylation of sunflower oil in the presence of boron trioxide catalyst and the adduct usage as the base stock and lubricant additive

Bulletin of the Chemical Society of Ethiopia, 2017
Lubrication properties of sunflower oil have been modified by epoxidation in the first step and acetylation of the obtained epoxide in the second step.
J. Ashrafi, A. Semnani, H. S. Langeroodi, M. Shirani   +3 more
doaj   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo, Vincenzo Patamia, Chiara Zagni, Antonio Rescifina, Giuseppe Floresta   +4 more
wiley   +1 more source

Industrial catalytic processes intensification through the use of microreactors

, 2011
The aim of this work was the intensification of two interesting industrial processes: 1. Biodiesel Production 2. Epoxidized Oils Production In the first case the reaction in traditional industrial reactors is strongly limited by mass transfer, due the ...
Turco, Rosa
core  

Ketone-catalyzed asymmetric epoxidation reactions

, 2004
This Account summarizes our efforts in developing organic ketone catalysts for enantioselective and diastereoselective epoxidation of olefins. We have developed an efficient and general protocol for epoxidation of olefins using dioxiranes generated in ...
Yang, D, Dan Yang
core   +1 more source

Phase I Metabolism of Novel Phencyclidine Derivative 3‐Cl‐PCP: In Vitro Studies With Pooled Human Liver Microsomes and Investigation of a Post‐Mortem Case

Drug Testing and Analysis, EarlyView.
A fatal 3‐chloro‐phencyclidine (3‐Cl‐PCP) intoxication was investigated by analyzing postmortem samples and a pooled human liver microsomes assay. Tentative metabolite identification was performed by liquid chromatography‐quadrupole time‐of‐flight mass spectrometry (LC‐QTOF‐MS). Seven phase I metabolites were identified.
Johannes Kutzler, Tobias Veit, Thomas Keller, Volker Auwärter   +3 more
wiley   +1 more source