Results 31 to 40 of about 59,417 (298)

Mechanistic investigation on oxygen transfer with the manganese-salen complex [PDF]

, 2015
The best-known application of salen complexes is the use of a chiral ligand loaded with manganese to form the Jacobsen complex. This organometallic catalyst is used in the epoxidation of unfunctionalized olefins and can achieve very high selectivities ...
Bogaerts, Thomas, Van Der Voort, Pascal, Van Speybroeck, Veronique, Wouters, Sebastian   +3 more
core   +2 more sources

Asymmetric Epoxidation of Olefins with Sodium Percarbonate Catalyzed by Bis-amino-bis-pyridine Manganese Complexes

Molecules, 2022
Asymmetric epoxidation of a series of olefinic substrates with sodium percarbonate oxidant in the presence of homogeneous catalysts based on Mn complexes with bis-amino-bis-pyridine ligands is reported.
Varvara A. Drozd, Roman V. Ottenbacher, Konstantin P. Bryliakov   +2 more
doaj   +1 more source

Total synthesis of aurofusarin: studies on the atropisomeric stability of bis-naphthoquinones [PDF]

, 2018
An efficient annulation involving pyrone addition to a quinone and Dieckmann condensation was developed for rapid assembly of a γ-naphthopyrone monomeric precursor to the bis-naphthoquinone natural product aurofusarin.
Allen, Ashley, Bao, Berkessel, Birchall, Bringmann, Bringmann, Chen, Corey, Crimmins, Dao, Donner, Dwyer, Flegel, Frandsen, Gao, Gray, Helder, Jew, Konkol, Lee, Leeper, Liau, Masson, Morishita, Natori, Romaine, Shi, Shibata, Shibata, Shibata, Shirakawa, Shirakawa, Sperry, Sun, Takeya, Takizawa, Varun, Wu, Yeung, Zeeck, Zhang, Ōki   +42 more
core   +1 more source

Epoxidation of Methyl Esters as Valuable Biomolecules: Monitoring of Reaction

Molecules, 2023
The paper is focused on the epoxidation of methyl esters prepared from oil crops with various profiles of higher fatty acids, especially unsaturated, which are mainly contained in the non-edible linseed and Camelina sativa oil (second generation).
Martin Hájek, Tomáš Hájek, David Kocián, Karel Frolich, András Peller   +4 more
doaj   +1 more source

P450BM3-Catalyzed Oxidations Employing Dual Functional Small Molecules [PDF]

, 2019
A set of dual functional small molecules (DFSMs) containing different amino acids has been synthesized and employed together with three different variants of the cytochrome P450 monooxygenase P450BM3 from Bacillus megaterium in H2O2-dependent oxidation
Girhard, Marco, Gonzalo Calvo, Gonzalo de, Hollmann, Frank, Tieves, Florian, Urlacher, Vlada B., Willot, Sébastien Jean-Paul   +5 more
core   +1 more source

Manganese-Catalyzed Enantioselective Dearomative Epoxidation of Naphthalenes with Aqueous Hydrogen Peroxide. [PDF]

Angew Chem Int Ed Engl
The enantioselective epoxidation of naphthalenes into their corresponding arene oxides with aqueous hydrogen peroxide is described. The reaction combines dearomatization with installation of chemically versatile functionality in an enantioselective manner.
Choukairi Afailal N, Chan SC, Costas M.
europepmc   +3 more sources

Feasibility studies on Kinetics, thermodynamics, thermal analysis and physicochemical Characterization of Anacardium occidentale kernel oil methyl ester epoxidation-esterification, for use as bio-transformer fluid

Chemical Thermodynamics and Thermal Analysis, 2022
Epoxidation-esterification of fatty acid methyl ester obtained from Anacardium occidentale kernel oil (AOKO), its characterization, kinetics and thermodynamics were the main focus of this study.
Chinedu M. Agu, Kingsely A. Ani, Albert C. Agulanna, Matthew C. Menkiti   +3 more
doaj  

Selective epoxidation of soybean oil with performic acid catalyzed by acidic ionic exchange resins

Green Processing and Synthesis, 2013
This work studied the epoxidation of soybean oil with aqueous hydrogen peroxide and formic acid, in the presence of acidic ionic exchange resins as catalysts.
Turco Rosa, Vitiello Rosa, Russo Vincenzo, Tesser Riccardo, Santacesaria Elio, Di Serio Martino   +5 more
doaj   +1 more source

Engineering Collariella virescens Peroxygenase for Epoxides Production from Vegetable Oil

Antioxidants, 2022
Vegetable oils are valuable renewable resources for the production of bio-based chemicals and intermediates, including reactive epoxides of industrial interest.
Dolores Linde, Alejandro González-Benjumea, Carmen Aranda, Juan Carro, Ana Gutiérrez, Angel T. Martínez   +5 more
doaj   +1 more source

Epoxidation of Strained Alkenes Catalysed by (1,2-dimethyl-4(1H)pyridinone-3-olate)2MnIIICl [PDF]

, 2015
The mild epoxidation of strained alkenes using (DMPO)2MnCl catalyst (DMPO = 1,2-dimethyl-4(1H)-pyridinone-3-olate) in the presence of various oxidants was studied.
Robinson-Miller, Adam, Tetard, David, Wyatt, Mark   +2 more
core   +1 more source