Alkylation is a chemical reaction that entails transfer of an alkyl group. The alkyl group may be transferred as an alkyl carbocation, a free radical,...
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Friedel–Crafts reaction (redirect from Friedel-Craft-Alkylation)
to an aromatic ring. Friedel–Crafts reactions are of two main types: alkylation reactions and acylation reactions. Both proceed by electrophilic aromatic...
21 KB (2,108 words) - 12:28, 18 August 2024
Amine alkylation (amino-dehalogenation) is a type of organic reaction between an alkyl halide and ammonia or an amine. The reaction is called nucleophilic...
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An alkylation unit (alky) is one of the conversion processes used in petroleum refineries. It is used to convert isobutane and low-molecular-weight alkenes...
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The Enders SAMP/RAMP hydrazone alkylation reaction is an asymmetric carbon-carbon bond formation reaction facilitated by pyrrolidine chiral auxiliaries...
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Birch reduction (redirect from Birch alkylation)
salts are necessary to colocate the reactants via complexation. In Birch alkylation the anion formed in the Birch reduction is trapped by a suitable electrophile...
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Chiral auxiliary (redirect from Myers' asymmetric alkylation)
selectively furnishes the (Z)-enolate, which can undergo stereoselective alkylation. Alkylation of an oxazolidinone imide with benzyl bromide Activated electrophiles...
34 KB (3,692 words) - 20:40, 22 July 2024
Ether (redirect from O-alkylation)
In organic chemistry, ethers are a class of compounds that contain an ether group—an oxygen atom bonded to two organyl groups (e.g., alkyl or aryl). They...
19 KB (1,835 words) - 03:40, 19 May 2024
Amine (redirect from N-alkylation)
effects. Industrially significant alkyl amines are prepared from ammonia by alkylation with alcohols: ROH + NH 3 ⟶ RNH 2 + H 2 O {\displaystyle {\ce {ROH + NH3...
35 KB (3,695 words) - 10:22, 30 July 2024
Tsuji–Trost reaction (redirect from Trost asymmetric allylic alkylation)
The Tsuji–Trost reaction (also called the Trost allylic alkylation or allylic alkylation) is a palladium-catalysed substitution reaction involving a substrate...
24 KB (2,771 words) - 01:05, 8 March 2024
The Stork enamine alkylation involves the addition of an enamine to a Michael acceptor (e.g., an α,β -unsaturated carbonyl compound) or another electrophilic...
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the Fráter–Seebach alkylation (also known as Seebach–Fráter alkylation or Fráter–Seebach reaction) is a diastereoselective alkylation of chiral beta-hydroxy...
3 KB (281 words) - 11:44, 20 July 2019
Enamine (section Alkylation)
counterparts, they can still react selectively, rendering them useful for alkylation reactions. The enamine nucleophile can attack haloalkanes to form the...
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Sulfonate (redirect from Strecker sulfite alkylation)
Lewis acids. A classic preparation of sulfonates is the Strecker sulfite alkylation, in which an alkali sulfite salt displaces a halide, typically in the...
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well as the phenol. Cumene is formed in the gas-phase Friedel–Crafts alkylation of benzene by propene. Benzene and propene are compressed together to...
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Ammonolysis (redirect from Alkylation of Amines)
"Haloalkanes and ammonia". www.chemguide.co.uk. Ashenhurst, James (2017-05-26). "Alkylation of Amines". Master Organic Chemistry. Werner, Emil Alphonse (1918-01-01)...
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Cyanide (section Alkylation)
In chemistry, cyanide (from Greek kyanos 'dark blue') is a chemical compound that contains a C≡N functional group. This group, known as the cyano group...
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Nitrile anion (section Alkylation of nitrile anions)
halides. The primary difficulty for alkylation reactions employing nitrile anions is over-alkylation. In the alkylation of acetonitrile, for instance, yields...
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1951 and came into medical use in 1960. Carbocisteine is produced by alkylation of cysteine with chloroacetic acid. Carbocisteine. drugbank.ca Zheng JP...
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Pennsylvania. A release of hydrocarbons and hydrofluoric acid in the refinery's alkylation unit caused a ground-hugging vapor cloud which rapidly ignited, leading...
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N,N-Diisopropylethylamine (section Alkylations)
DIPEA is commercially available. It is traditionally prepared by the alkylation of diisopropylamine with diethyl sulfate. Pure DIPEA exists as a colorless...
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Creosote (section Alkylation)
effects. This diagram shows an o-alkylation between phenol and methanol. Unlike the c-alkylation, the o-alkylation replaces the hydrogen atom on the...
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the development name AT-001; development was discontinued in 2011. The alkylation of 2-chlorophenothiazine (1) and 1-(3-Chloropropyl)-4-methylpiperazine...
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scale in the petroleum industry by alkylation of isobutene with isobutane. This process is conducted in alkylation units in the presence of acid catalysts...
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Huntsman (chemical plant) (section Alkylation)
plant is not stored but piped directly to the Alkylation plant where it is consumed. If the Alkylation plant cannot accept the ethylene, the gas is sent...
15 KB (2,217 words) - 10:26, 13 January 2024
cumene is by Friedel–Crafts alkylation of benzene with propylene. The original route for manufacturing of cumene was by alkylation of benzene in the liquid...
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Friedel-Crafts alkylation and related reactions. AlCl3 is a common Lewis-acid catalyst for Friedel-Crafts reactions, both acylations and alkylations. Important...
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Ethylene (section Alkylation)
polymerization, 2) oxidation, 3) halogenation and hydrohalogenation, 4) alkylation, 5) hydration, 6) oligomerization, and 7) hydroformylation. In the United...
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chlorphenamine. A second method boom starts from pyridine, which undergoes alkylation by 4-chlorophenylacetonitrile, giving 2-(4-chlorobenzyl)pyridine. Alkylating...
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are aromatic nitration, aromatic halogenation, aromatic sulfonation, alkylation Friedel–Crafts reaction and acylation Friedel–Crafts reaction. The most...
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