Abstraction lyrique — L abstraction lyrique se réfère à deux mouvements liés mais distincts de la peinture moderne d après guerre. L abstraction lyrique européenne ainsi baptisée par le critique Jean José Marchand et le peintre Georges Mathieu en 1947, dont le courant … Wikipédia en Français
hydride ion abstraction — Reaction of strong acid with C H bond, where hydrogen is removed as a negative ion, hydride, yielding a carbenium ion … Petroleum refining glossary
Hypostatic abstraction — Hypostatic abstraction, also known as hypostasis or subjectal abstraction, is a formal operation that takes an element of information, such as might be expressed in a proposition of the form X is Y , and conceives its information to consist in… … Wikipedia
Ene reaction — The Ene reaction (also known as the Alder ene reaction) is a chemical reaction between an alkene with an allylic hydrogen (the ene) and a compound containing a multiple bond (the enophile), in order to form a new σ bond with migration of the ene… … Wikipedia
Michael reaction — The Michael reaction or Michael addition is the nucleophilic addition of a carbanion or another nucleophile[1][2][3] to an alpha, beta unsaturated carbonyl compound. It belongs to the larger class of conjugate additions. This is one of the most… … Wikipedia
Prins reaction — are formed. HistoryThe original reactants employed by Dutch chemist Hendrik Jacobus Prins in his 1919 publication were styrene ( scheme 2 ), pinene, camphene, eugenol, isosafrole and anethole. In 1937 the reaction was investigated as part of a… … Wikipedia
Norrish reaction — The Norrish reaction in organic chemistry describes the photochemical reactions taking place with ketones and aldehydes. This type of reaction is subdivided in Norrish type I reactions and Norrish type II reactions [1]. The reaction is named… … Wikipedia
Barton reaction — The Barton Reaction involves the photolysis of a nitrite to form a δ nitroso alcohol. It is named for the British chemist Sir Derek Harold Richard Barton. [cite journal title = A New Photochemical Reaction author = D. H. R. Barton, J. M. Beaton,… … Wikipedia
abstrakcijos reakcija — statusas T sritis chemija apibrėžtis Bimolekulinė reakcija, kurios metu viena molekulė iš kitos atima atomus, elektronus, protonus. atitikmenys: angl. abstraction reaction rus. реакция абстракции … Chemijos terminų aiškinamasis žodynas
реакция абстракции — abstrakcijos reakcija statusas T sritis chemija apibrėžtis Bimolekulinė reakcija, kurios metu viena molekulė iš kitos atima atomus, elektronus, protonus. atitikmenys: angl. abstraction reaction rus. реакция абстракции … Chemijos terminų aiškinamasis žodynas