Publication

Base-induced elimination reactions. VII. Hydroxide-promoted elimination reactions: alkyl halides as substrates

Manfred Schlosser
1977
Journal Articles

Abstract

HCl and HBr were easily abstracted from secondary and tertiary alkyl halides by KOH in tetraglyme, but primary alkyl halides yielded approx. equal amts. of elimination and substitution products (alkenes and alcs. and/or ethers). However, the addn. of catalytic amts. of Me3N favored dehydrohalogenation via quaternary ammonium salt intermediates. [on SciFinder (R)]

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Manfred Schlosser
1977
Journal Articles

Abstract

Official source

Related concepts (17)

Chemical reaction

A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation. Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur.

Amine

In chemistry, amines (əˈmi:n,_ˈæmi:n, ˈeɪmiːn) are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia (), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or aryl group (these may respectively be called alkylamines and arylamines; amines in which both types of substituent are attached to one nitrogen atom may be called alkylarylamines). Important amines include amino acids, biogenic amines, trimethylamine, and aniline.

Dehydrohalogenation

In chemistry, dehydrohalogenation is an elimination reaction which removes a hydrogen halide from a substrate. The reaction is usually associated with the synthesis of alkenes, but it has wider applications. Traditionally, alkyl halides are substrates for dehydrohalogenations. The alkyl halide must be able to form an alkene, thus halides having no C–H bond on an adjacent carbon are not suitable substrates. Aryl halides are also unsuitable. Upon treatment with strong base, chlorobenzene dehydrohalogenates to give phenol via a benzyne intermediate.

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