In chemistry, dehydrohalogenation is an elimination reaction which removes a hydrogen halide from a substrate. The reaction is usually associated with...
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Alkynes are prepared from 1,1- and 1,2-dihaloalkanes by double dehydrohalogenation. The reaction provides a means to generate alkynes from alkenes,...
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reacts in a coupling reaction with epichlorohydrin, followed by dehydrohalogenation. Epoxy resins produced from such epoxy monomers are called glycidyl-based...
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refrigerant in air conditioners. It is prepared by fluorination and dehydrohalogenation reactions starting with 1,1,1,3,3-pentachloropropane. Cheryl Hogue...
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In organic chemistry, an epoxide is a cyclic ether, where the ether forms a three-atom ring: two atoms of carbon and one atom of oxygen. This triangular...
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Base-induced bimolecular dehydrohalogenation (an E2 type reaction mechanism). The optimum geometry for the transition state requires the breaking bonds...
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as a source of the 2-propenyl group. One early synthesis involves dehydrohalogenation of 1,2-dichloropropane with potassium hydroxide. Takahashi, Tamotsu;...
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formation of urethane foams and epoxy resins. It is also useful in dehydrohalogenation reactions and Swern oxidations. Triethylamine is readily alkylated...
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is a chemical compound formed by the loss of hydrogen chloride (dehydrohalogenation) from DDT, of which it is one of the more common breakdown products...
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Sodium amide (section Dehydrohalogenation)
which is recycled typically. Sodium amide is a standard base for dehydrohalogenations. It induces the loss of two equivalents of hydrogen bromide from...
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n-BuI, which can react with the RLi reagent formed, and by competing dehydrohalogenation reactions, in which n-BuLi serves as a base: 2 C4H9Br + RLi → 2 C4H9R...
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triflate). When an alkyl halide is used, the reaction is called a dehydrohalogenation. For unsymmetrical products, the more substituted alkenes (those...
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It reacts with C70 and higher fullerenes, but not with C60. As a dehydrohalogenation agent. In surface activation products (primers) for low-surface energy...
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chloramine with the formula C5H10NCl. The resulting chloramine undergoes dehydrohalogenation to afford the cyclic imine. 13C NMR: (CDCl3, ppm) 47, 27.2, 25.2[citation...
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of trimethylaniline by dibromoethane followed by ring closure and dehydrohalogenation. Nolan, Steven P. (2006). N-Heterocyclic Carbenes in Synthesis. Wiley-VCH...
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[Specific proton acceptors as auxiliary bases in alkylation and dehydrohalogenation reactions]. Chemische Berichte (in German). 91 (2). Wiley-VCH: 380–392...
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while iodine is the least reactive of them all. The facility of dehydrohalogenation follows the reverse trend: iodine is most easily removed from organic...
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well. In the presence of a strong base, alkyl chlorides undergo dehydrohalogenation to give alkenes or alkynes.[citation needed] Alkyl chlorides react...
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terminal acetylenes and active methylene compounds. It is useful in dehydrohalogenation reactions. Illustrating the latter behavior, potassium tert-butoxide...
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used in situ rather than being isolated. The compound undergoes dehydrohalogenation to afford the cyclic imine. Claxton, George P.; Allen, Lloyd; Grisar...
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first obtained by Eugen Bamberger and Wilhelm Lodter in 1893 by dehydrohalogenation of 3-chloro-2-tetralol with hot alkali. 2-Tetralone may be prepared...
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brominated, and the resulting dibromodiphenylethane is subjected to dehydrohalogenation. Yet another method involves the coupling of iodobenzene and the...
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trichloroethane to give aluminium trichloride, which in turn catalyses the dehydrohalogenation of the remaining trichloroethane to vinylidene chloride and hydrogen...
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otherwise it dimerises to biphenylene. Early routes to benzyne involved dehydrohalogenation of aryl halides: Such reactions require strong base and high temperatures...
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empirical rule for predicting the favored regiochemistry in the dehydrohalogenation of alkyl iodides, though it turns out that the rule is applicable...
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bromination of 1,2-cycloheptanedione with N-bromosuccinimide followed by dehydrohalogenation at elevated temperatures, while another uses acyloin condensation...
17 KB (1,169 words) - 06:36, 15 May 2025
diastereoisomer predominates). An example of modest stereoselectivity is the dehydrohalogenation of 2-iodobutane which yields 60% trans-2-butene and 20% cis-2-butene...
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at the secondary position, which allows the molecule to undergo dehydrohalogenation easily to give propene, which escapes as a gas and can rupture closed...
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dimethylketene. It arises spontaneously when dimethylketene is produced by dehydrohalogenation of isobutyryl chloride with triethylamine. In the presence of aluminium...
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magnesium salts and an extended alkyl compound.[citation needed] In dehydrohalogenation reactions, the halogen and an adjacent proton are removed from halocarbons...
20 KB (2,474 words) - 17:25, 30 May 2025