Results 31 to 40 of about 84,237 (324)

A continuous protocol for the epoxidation of olefins, monocyclic terpenes, and Alpha Beta Unsaturated Carbonyl Synthons using eco-friendly Flow Reactor Conditions

open access: yesResults in Engineering, 2022
Herein, we report a simple synthetic protocol for selective epoxidation of olefins, monocyclic terpenes, and chalcones using a continuous semi-batch process in good to excellent yields.
Chidambaram R. Ramaswamy   +7 more
doaj   +1 more source

Kinetic Resolution in Asymmetric Epoxidation using Iminium Salt Catalysis [PDF]

open access: yes, 2013
The first reported examples of kinetic resolution in epoxidation reactions using iminium salt catalysis are described, providing up to 99% ee in the epoxidation of racemic cis ...
Allin, Steven M.   +7 more
core   +1 more source

Epoxidation of Soybean Oil and its Blend with Waste Cooking Oil Using H2SO4 as Homogeneous Catalyst

open access: yesChemical Engineering Transactions, 2023
Epoxidation of soybean oil is carried out at different conditions such as the feed ratio of C=C/CH3COOH/H2O2 (1:1:1, 1:1:2, 1:2:1, 1:2:2, 1:2:4), reaction temperature (50 °C, 65 °C) and reaction time (3–7 h). Physicochemical properties of the reagent and
Hong-Phuong Phan   +2 more
doaj   +1 more source

Kinetic models of reaction systems for the in situ epoxidation of unsaturated fatty acid esters and triglycerides [PDF]

open access: yesHemijska Industrija, 2004
Mathematical models that describe the kinetics of reaction systems for the in situ epoxidation of unsaturated fatty acid esters or triglycérides with organic peracids are reviewed in this paper. The advantages and inadequacies of each model are discussed.
Janković Milovan R.   +1 more
doaj   +1 more source

Epoxidação do óleo de soja com o sistema catalítico [MoO2(acac)2]/TBHP EM [bmim][PF6]

open access: yesQuímica Nova, 2012
Epoxidation of soybean oil was investigated using 1-n-butyl-3-methylimidazolium hexafluorophosphate [bmim][PF6] ionic liquid as biphasic medium with molybdenum(VI) acetylacetonate complex and tert-butyl hydroperoxide TBHP as oxidizing agent.
Maritana Farias, Márcia Martinelli
doaj   +1 more source

FORMULASI PEMBUATAN BIOGREASE DENGAN BASE OIL EPOKSI RBDPO

open access: yesJurnal Teknologi Industri Pertanian, 2021
Biogrease is a semi-solid lubricant produced using vegetable oil. The biogrease consists of base oil and thickening agent. Base oil modification is done to change properties such as viscosity, adhesive properties to iron, etc.
M Luqmanul Hakim   +2 more
doaj   +1 more source

Rational design of a polyoxometalate intercalated layered double hydroxide: highly efficient catalytic epoxidation of allylic alcohols under mild and solvent-free conditions [PDF]

open access: yes, 2016
Intercalation catalysts, owing to their modular and accessible gallery and unique interlamellar chemical environment, have shown wide application in various catalytic reactions.
Chen, Wei   +4 more
core   +1 more source

Epoxidation of Terpenes

open access: yesCatalysts, 2021
Terpene epoxides are considered as potential primary intermediates in the synthesis of numerous green polymers including epoxy resins, polycarbonates, nonisocyanate polyurethanes and even some polyamides.
Yacoub Mahamat Ahmat   +3 more
semanticscholar   +1 more source

The comparative quantum chemical study of the epoxidation reaction mechanism of eugenol and isoeugenol with peracetic and perbenzoic acids

open access: yesЖурнал органічної та фармацевтичної хімії, 2019
Aim. To study the kinetics of the epoxidation reaction for eugenol and isoeugenol with perbenzoic acid, carry out the comparative quantum chemical study of the epoxidation reaction mechanism of eugenol and isoeugenol isomers (2-cis and 2-trans) with ...
O. M. Agafonov   +2 more
doaj   +1 more source

Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation [PDF]

open access: yes, 2010
Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
García, Rafael A.   +4 more
core   +1 more source

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