Allyl Chloride
Allyl Chloride - Related Videos
06:46
Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
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Cited by 1 •
2017
The ruthenium-catalyzed olefination of electron-deficient alkenes with allyl acetate is described here. By using aminocarbonyl as a directing group, this external oxidant-free protocol has high efficiency and good stereo- and regioselectivity, opening a novel synthetic route to (Z,E)-butadiene skeletons.
01:27
π Molecular Orbitals of the Allyl Radical
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2025
Allyl radicals are three-carbon conjugated systems. They are readily formed as intermediates in halogenation reactions of alkenes involving the addition of halogen to the allylic carbon instead of the double bond. As seen in allyl cations and anions, each of the three sp2-hybridized carbon atoms in allyl radicals has an unhybridized p orbital. These orbitals combine to give three π molecular orbitals. The allyl systems have identical molecular orbitals but differ in the number of π electrons.
07:32
Dynamic Electrochemical Measurement of Chloride Ions
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Cited by 5 •
2016
Dynamic measurement of chloride ions is presented. Transition time of an Ag/AgCl electrode, during a chronopotentiometric technique, can give the concentration of chloride ions in electrolyte. This method does not require a stable conventional reference electrode.
01:31
Radical Substitution: Allylic Chlorination
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2023
Typically, when alkenes react with halogens at low temperatures, an addition reaction occurs. However, upon increasing the temperature or under reaction conditions that form radicals, providing a low but steady concentration of halogen radicals, allylic substitution reaction is favored. This is because allylic hydrogens are very reactive as the formed intermediate is resonance stabilized. For example, when propene is treated with chlorine in the gas phase at 400 °C, it undergoes allylic...
01:27
Radical Substitution: Allylic Bromination
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2025
In organic synthesis, the formation of products can be altered by changing the reaction conditions. For example, a dibromo addition product is formed when propene is treated with bromine at room temperature. In contrast, propene undergoes allylic substitution in non-polar solvents at high temperatures to give 3-bromopropene. In order to avoid the addition reaction, the bromine concentration must be kept as low as possible throughout the reaction. This can be achieved using N-bromosuccinimide...
FAQs
Its chlorine-bearing carbon is allylic, meaning it lies directly beside a carbon-carbon double bond. When a nucleophile displaces chlorine, the adjacent double bond stabilizes the transition state associated with this substitution. This electronic arrangement helps explain why allyl chloride serves as a useful substrate for examining how structure influences substitution reactivity in organic chemistry.
The double bond does more than remain as an isolated functional group. Because it is adjacent to the carbon undergoing substitution, it can support transition-state stabilization and permit related allylic substitution processes. Consequently, the same substrate can help chemists investigate how neighboring unsaturation affects reaction pathways and selectivity during nucleophile-driven transformations.
The nucleophile provides the attacking component of the substitution and displaces chlorine from the allylic carbon. This exchange introduces an allyl group into another organic molecule, linking the reaction mechanism to a practical synthetic purpose. The identity of the nucleophile therefore determines which allyl-containing product is formed, while the substrate supports study of substitution behavior.
Allyl chloride combines a leaving group with a neighboring double bond, allowing chemists to examine ordinary SN2 displacement alongside related allylic substitution behavior. Comparing these pathways helps connect molecular structure with transition-state stabilization and product selectivity. Its value is therefore both synthetic and mechanistic: it can build allyl-containing compounds while revealing how substitution routes compete or differ.
A synthesis can use allyl chloride as the starting substrate and a suitable nucleophile as the reacting partner. Nucleophilic displacement of chlorine transfers the allyl group into the product, providing a direct route to an allyl-containing molecule. This strategy supports preparation of intermediates used in broader chemical production, including compounds related to ethers, resins, and polymers.
Allyl chloride is used in producing epichlorohydrin, allyl ethers, resins, polymers, pharmaceuticals, and agricultural chemicals. These applications reflect its role as a versatile intermediate rather than merely a reagent for one transformation. In research laboratories, the same compound is valuable as a model substrate for investigating substitution mechanisms, reaction pathways, and selectivity in organic synthesis.