Reactions of Picryl Ether with Amino Compounds

Studies in vitamin A; reactions of retinene1 with amino compounds.

detection of volatile compounds of medicinal plants with some nano-sorbents using modified or new methodologies and investigation of antioxidant activity of their methanolic extracts

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

Reactions of Organoaluminium Compounds with Electron Donors

The application of organoaluminium compounds as components of organometallic or complex systems is connected with a knowledge of their reactions with electron donors. Reactions with nitriles, ketones, esters, ethers, alkyl chlorides, vinyl chloride, and acid chlorides as the electron donors were investigated. The first stage of the reaction of an organoaluminium compound with an electron donor ...

Reactions of Model Compounds with Supercritical Water

The possible use of supercritical fluid extraction (SFE) of coal to obtain cleaner, more versatile fluid products is of significant interest. Some fluids have the opportunity to participate as reactants at process conditions, which may yield extracts of very different compositions than those obtained from other treatments and which will be dependent on the fluid used. Thermodynamic consideratio...

Determination Functional Theory Investigation of Polyphenolic Compounds Reactions: NMR study

Over the past decade, the chemical behavior of flavonoids as antioxidants has become the subject ofintense experimental research. In this paper, we use a quantum-chemical approach to shed light on thereactivity of four poly phenols, Benzoic acid, vanilic acid, gallic acid and flavone . In order to establishthe most efficient theoretical methodology, different methods, either Hartree—Fock-based ...