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Electrophilic halogenation. In organic chemistry, an electrophilic aromatic halogenation is a type of electrophilic aromatic substitution. This organic reaction is typical of aromatic compounds and a very useful method for adding substituents to an aromatic system. A few types of aromatic compounds, such as phenol, will react without a catalyst ...
Electrophilic aromatic substitution (SEAr) is an organic reaction in which an atom that is attached to an aromatic system (usually hydrogen) is replaced by an electrophile. Some of the most important electrophilic aromatic substitutions are aromatic nitration, aromatic halogenation, aromatic sulfonation, alkylation Friedel–Crafts reaction and ...
The Raschig–Hooker process is a chemical process for the production of chlorobenzene and phenol. [1][2] The Raschig–Hooker process was patented by Friedrich Raschig, a German chemist and politician also known for the Raschig process, the Olin Raschig process and the Raschig ring. [3] He first begun to use this reaction in 1891 in order to ...
Halogenation. In chemistry, halogenation is a chemical reaction which introduces one or more halogens into a chemical compound. Halide -containing compounds are pervasive, making this type of transformation important, e.g. in the production of polymers, drugs. [1] This kind of conversion is in fact so common that a comprehensive overview is ...
In chemistry, the haloform reaction (also referred to as the Lieben haloform reaction) is a chemical reaction in which a haloform (CHX 3, where X is a halogen) is produced by the exhaustive halogenation of an acetyl group (R−C(=O)CH 3, where R can be either a hydrogen atom, an alkyl or an aryl group), in the presence of a base.
Details. Benzene can be easily converted to chlorobenzene by nucleophilic aromatic substitution via a benzyne intermediate. [1] It is treated with aqueous sodium hydroxide at 350 °C and 300 bar or molten sodium hydroxide at 350 °C to convert it to sodium phenoxide, which yields phenol upon acidification. [2] When 1- [14 C]-1-chlorobenzene was ...
A halogen addition reaction is a simple organic reaction where a halogen molecule is added to the carbon–carbon double bond of an alkene functional group. [1] The general chemical formula of the halogen addition reaction is: C=C + X 2 → X−C−C−X. (X represents the halogens bromine or chlorine, and in this case, a solvent could be CH 2 ...
Transhalogenation has been described as a gentle method for the synthesis of fluoroorganylboranes. [ 4] It is also possible to produce aryliodides from the corresponding aryl chlorides or aryl bromides. [ 5] One investigation showed a possibility to perform transhalogenation by means of genetically modified enzymes (haloalkanes dehalogenases ...