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20.433  Articles
1 of 2.044 pages  |  10  records  |  more records»
Aim. To compare the mechanism of the epoxidation reaction of terpenes Geraniol and Limonene with peracetic acid and perbenzoic acid based on the quantum chemical study.Materials and methods. For the calculation the density functional theory (approximation... see more

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 perac... see more

The stereochemical aspects of epoxidation of norbornene and its 7-syn-substituted derivatives by performic acid were investigated. Geometry and thermodynamic parameters of transition states and prereactive complexes were computed at the UBHandHLYP/6-31G(d... see more

The study of the properties and use of natural metalloporphyrins in the development of new highly selective methods for the oxygenation of hydrocarbons at moderate temperatures is an urgent problem. The present work is devoted to the extraction of metallo... see more

Manganese (III) salen complexes have been reported as epoxidation catalysts. It is caused a major breakthrough in the enantioselective epoxidation of alkenes into epoxide compounds. This catalyst was synthesized from salicylaldehyde derivatives. Based on ... see more

Cytochrome P450s are a broad class of enzymes in the human body with important functions for human health, which include the metabolism and detoxification of compounds in the liver. Thus, in their catalytic cycle, the P450s form a high-valent iron(IV)-oxo... see more

The chemoselectivity and stereospecificity of the addition of the morpholine and the meta-chloroperoxybenzoic acid (m-CPBA) onto 9a-hydroxyparthenolide were studied using Density Functional Theory (DFT) calculations with the B3LYP/6-311+G(d,p) comput... see more

An Intrusion Detection System (IDS) is essential for automatically monitoring cyber-attack activity. Adopting machine learning to develop automatic cyber attack detection has become an important research topic in the last decade. Deep learning is a popula... see more

Sentence comprehension in EFL (English as a Foreign Language) contexts is influenced by many factors. One of the most important ones is the processing mechanism of relative clauses which can be analyzed in different frameworks by researchers. So far, a wi... see more

1 of 2.044 pages  |  10  records  |  more records»