Results 21 to 30 of about 30,818 (251)

Epoxidation and thermal study of vegetable oils in a calorimetric reactor [PDF]

, 2022
In this work both calorimetric study as well as epoxidation reaction have been carried out using : soybean oil, sunflower oil and rapesedd oil. The main objective of this work is analyze the different behaviour of these oils and compare the results ...
Nocco, Emanuele
core  

Catalytic and mechanistic studies into the epoxidation of styrenes using manganese complexes of structurally similar polyamine ligands [PDF]

, 2014
Two structurally similar polyamine ligands (7 and 8) have been prepared, which differ only by the presence of either a secondary or tertiary nitrogen donor within their N5 donor set.
Watkinson, M, Ilyashenko, G, Follier, T, De Faveri, G, Al-Safadi, R, Motevalli, M, Ilyashenko, Gennadiy, Watkinson, Michael, Follier, Thomas, De Faveri, Giorgio, Al-Safadi, Rawan, Motevalli, Majid   +11 more
core   +1 more source

Chemo-enzymatic epoxidation of fatty compounds – Focus on processes involving a lipase-catalyzed perhydrolysis step

Oléagineux, Corps gras, Lipides, 2008
At the industrial scale, the chemical Prileshajev reaction is currently the only method applied to produce epoxidized plant oils. Using enzymes could be an alternative way allowing an environmentally benign and more selective epoxidation reaction.
Tiran Céline, Lecomte Jérôme, Dubreucq Eric, Villeneuve Pierre   +3 more
doaj   +1 more source

Stereoselectivity in the Epoxidation of Carbohydrate-Based Oxepines

, 2016
The facial selectivity in the DMDO epoxidation of carbohydrate-based oxepines derived from glucose, galactose, and mannose has been determined by product analysis and density functional theory (DFT, B3LYP/6-31+G**//B3LYP/6-31G*) calculations.
Christopher M. Hadad (1336719), Nicole L. Snyder (695833), Bikash Surana (2091040), Mark W. Peczuh (1353069), Martha D. Morton (1537342), Shankar D. Markad (2424787), Shijing Xia (1783693)   +6 more
core   +4 more sources

Effects of different epoxidation methods of soybean oil on the characteristics of acrylated epoxidized soybean oil-co-poly(methyl methacrylate) copolymer

eXPRESS Polymer Letters, 2013
The effect of the type of epoxidation processes of soybean oil on the characteristics of epoxidized soybean oils (ESOs), acrylated epoxidized soybean oils (AESOs), and acrylated epoxidized soybean oil – poly(methyl metacrylate) copolymers (AESO-co-PMMA ...
V. Tanrattanakul, P. Saithai, E. Dubreucq, J. Lecomte   +3 more
doaj   +1 more source

Chemical modification of Terminalia catappa L. kernel oil methyl ester using epoxidation-esterification approach, for application as bio-transformer fluid – Physicochemical characterization, kinetics and thermodynamics

Cleaner Chemical Engineering, 2022
Epoxidation-esterification of fatty acid methyl ester obtained from Terminalia catappa L. kernel oil (TCKO), its characterization, kinetics and thermodynamics were the main focus of this study.
Chinedu M. Agu, Kenechi Nwosu-Obieogu, Kingsley A. Ani, Albert C. Agulanna, Solomon O. Iwu-Ejike, Ozioma Onyinye Oguegbu, Matthew C. Menkiti   +6 more
doaj   +1 more source

Guest Transition Metals in Host Keplerate Nanocapsules as Supramolecular Inorganic Functional Mimics of Monooxygenase Enzymes

Angewandte Chemie, EarlyView.
A Keplerate, an inorganic, porous buckyball was used as a host for copper metal cations ligated by histidine surrogates. Prepared by a simple assembly technique, the guest–host complex was used as a primitive biomimetic model of a monooxygenase enzyme complex, where C─H bonds were electrocatalytically hydroxylated by oxygen under reducing conditions ...
Eynat Haviv, Hagai Cohen, Ayelet Vilan, Liat Avram, Ronny Neumann   +4 more
wiley   +2 more sources

Sulfur Mediated Allylic C-H Arylation, Epoxidation and Aziridination [PDF]

, 2019
Transition-metal-free, sulfur mediated allylic C-H arylation, epoxidation and aziridination were realized through one-pot procedures. The reaction design involved initial addition between olefins and triflic anhydride activated sulfoxides, followed by ...
Gang, Hu, Hang, Luo, Pingfan, Li
core   +1 more source

Second‐Sphere Aromatic Substitutions That Tune H‐Atom Transfer Reactivity Observed for a Series of S = 1 Nonheme FeIV=O Complexes: An Enthalpy‐Entropy Compensation Effect

Angewandte Chemie, EarlyView.
A series of oxoiron(IV) complexes was synthesized to determine the impact of electronically tuned aromatic substitution in the secondary sphere of the ligand. Despite possessing identical electronic properties, they show significant differences in C─H oxidation reactions.
Abhishek Das, Jin Xiong, Victor G. Young Jr., Yisong Guo, Marcel Swart, Lawrence Que Jr.   +5 more
wiley   +2 more sources

Amphiphilic peroxo polyoxometalate as reaction control phase transfer catalyst for efficient epoxidation of olefins

Micro & Nano Letters, 2021
A peroxo polyoxometalate‐based catalyst was synthesized, characterized, and employed as a catalyst in the epoxidation of olefins with hydrogen peroxide (H2O2).
Jinghui Wu, Hongwei Zheng, Chi Wang, Xianze Wang, Xiaohong Wang, Mingxin Huo   +5 more
doaj   +1 more source