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This is the case of the theory of polynomials over an algebraically closed field, where elimination theory may be viewed as the theory of the methods to make quantifier elimination algorithmically effective. Quantifier elimination over the reals is another example, which is fundamental in computational algebraic geometry.
E1 is a model to explain a particular type of chemical elimination reaction. E1 stands for unimolecular elimination and has the following specifications It is a two-step process of elimination: ionization and deprotonation. Ionization: the carbon-halogen bond breaks to give a carbocation intermediate. deprotonation of the carbocation.
Reductive elimination is an elementary step in organometallic chemistry in which the oxidation state of the metal center decreases while forming a new covalent bond between two ligands. It is the microscopic reverse of oxidative addition , and is often the product-forming step in many catalytic processes.
Drug elimination, clearance of a drug or other foreign agent from the body; Elimination, the destruction of an infectious disease in one region of the world as opposed to its eradication from the entire world; Hazard elimination, the most effective type of hazard control; Elimination (pharmacology), processes by which a drug is eliminated from ...
In chemistry, an addition-elimination reaction is a two-step reaction process of an addition reaction followed by an elimination reaction. This gives an overall effect of substitution , and is the mechanism of the common nucleophilic acyl substitution often seen with esters , amides , and related structures.
The E1cB elimination reaction is a type of elimination reaction which occurs under basic conditions, where the hydrogen to be removed is relatively acidic, while the leaving group (such as -OH or -OR) is a relatively poor one. Usually a moderate to strong base is present. E1cB is a two-step process, the first step of which may or may not be ...
Process of elimination is a logical method to identify an entity of interest among several ones by excluding all other entities. In educational testing , it is a process of deleting options whereby the possibility of an option being correct is close to zero or significantly lower compared to other options.
The process transforms a metal-bound alkyl group into an alkene with the release of a metal hydride. [6] Notably, β-hydride elimination can also occur for other ligands, such as alkoxides, via similar mechanisms. Top: the β-hydride elimination of an alkyl ligand. Bottom: the β-hydride elimination of an alkoxide ligand.