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*  Intramolecular Heck reaction
The Heck reaction is the palladium-catalyzed coupling of an aryl or alkenyl halide with an alkene to form a substituted alkene ... The intramolecular Heck reaction (IMHR) is the coupling of an aryl or alkenyl halide with an alkene in the same molecule. The ... In the example below, the arene and alkene must both be in energetically unfavorable axial positions in order to react. (7) ... 5-Exo cyclization, which establishes a five-membered ring with an exocyclic alkene, is the most facile cyclization mode in ...
*  Radical fluorination
Alkyl radicals generated from radical additions to alkenes have also been fluorinated. Hydrides and nitrogen-, carbon-, and ... "Transition-metal-free, room-temperature radical azidofluorination of unactivated alkenes in aqueous solution". Org. Chem. Front ... Kindt, Stephanie; Heinrich, Markus R. (2014-11-17). "Intermolecular Radical Carbofluorination of Non-activated Alkenes". ... by radical addition to alkenes, or C-H bond and C-C bond activations. New sources of atomic fluorine are now emerging, such as ...
*  White catalyst
This species coordinates to the alkene and acidifies the adjacent C-H bond, which allows acetate to abstract the proton and ... This aryl palladium intermediate undergoes a 1,2-addition across the alkene double bond. β-Hydride elimination releases the ...
*  Oxidative addition
... such as the Monsanto process and alkene hydrogenation using Wilkinson's catalyst. It is often suggested that oxidative addition ...
*  Ligand cone angle
Evans, D.; Osborn, J. A.; Wilkinson, G. (1968). "Hydroformylation of Alkenes by Use of Rhodium Complex Catalyst". J. Chem. Soc ...
*  Ramberg-Bäcklund reaction
The Ramberg-Bäcklund reaction is an organic reaction converting an α-halo sulfone into an alkene in presence of a base with ... This intermediate is unstable and releases sulfur dioxide to form the alkene. Mixtures of cis isomer and trans isomer are ... oxidation of sulfides takes place selectively in the presence of alkenes and alcohols. α-Halo sulfides may in turn be ...
*  Phenylphosphine
Phosphorinanones can be used to prepare alkenes, amines, indoles, and secondary and tertiary alcohols by reduction, Grignard, ...
*  Alkyne
... s are characteristically more unsaturated than alkenes. Thus they add two equivalents of bromine whereas an alkene adds ... The C≡C bond distance of 121 picometers is much shorter than the C=C distance in alkenes (134 pm) or the C-C bond in alkanes ( ... In some reactions, alkynes are less reactive than alkenes. For example, in a molecule with an -ene and an -yne group, addition ... They are far more acidic than alkenes and alkanes, which have pKa values of around 40 and 50, respectively. The acidic hydrogen ...
*  Electrophilic fluorination
Similar to other alkenes, cohalogenation can be accomplished either by isolation of the intermediate adduct and reaction with a ... Simple fluorinations of alkenes often produce complex mixtures of products. However, cofluorination in the presence of a ... A surfactant was used to facilitate contact between aqueous Selectfluor and the alkene. Fluorination of electron-rich aromatic ...
*  Alkene
Linear alkenes of approximately five to sixteen carbons are liquids, and higher alkenes are waxy solids. Alkenes are relatively ... Alkenes are ligands in transition metal alkene complexes. The two carbon centres bond to the metal using the C-C pi- and pi*- ... Most reactions of alkenes involve additions to this pi bond, forming new single bonds. Alkenes serve as a feedstock for the ... Alkenes have two hydrogen atoms fewer than the corresponding alkane (with the same number of carbon atoms). The simplest alkene ...
*  Pyramidal alkene
Pyramidal alkenes are alkenes in which the two carbon atoms making up the double bond are not coplanar with their four ... these alkenes are very reactive compared to ordinary alkenes. They are liable to dimerization to cyclobutadiene compounds or ... Pyramidal alkenes only exist in the laboratory but are of interest because much can be learned from them about the nature of ... In alkenes 1.2 and 1.3 these angles are determined with X-ray crystallography as respectively 32.4°/22.7° and 27.3°/35.6°. ...
*  Alkene carboamination
... is the simultaneous formation of C-N and C-C bonds across an alkene. This method represents a powerful ... Alkene substrates with a tethered nitrogen nucleophile have been used in these transformations to promote intramolecular ... Ney, J. E.; Wolfe, J. P. (2004). "Palladium-catalyzed synthesis of N-aryl pyrrolidines from γ-(N-arylamino) alkenes: evidence ... Liu, Z.; Wang, Y.; Wang, Z.; Zeng, T.; Liu, P.; Engle, K. "Catalytic Intermolecular Carboamination of Unactivated Alkenes via ...
*  Alkene monooxygenase
The systematic name of this enzyme class is alkene,NADH:oxygen oxidoreductase. This enzyme is also called alkene epoxygenase. ... In enzymology, an alkene monooxygenase (EC 1.14.13.69) is an enzyme that catalyzes the chemical reaction propene + NADH + H+ + ... Gallagher SC, Cammack R, Dalton H (1997). "Alkene monooxygenase from Nocardia corallina B-276 is a member of the class of ... Zhou NY, Jenkins A, Chan Kwo Chion CK, Leak DJ (1999). "The alkene monooxygenase from Xanthobacter strain Py2 is closely ...
*  Transition metal alkene complex
The barrier for the rotation of the alkene about the M-centroid vector is a measure of the strength of the M-alkene pi-bond. ... Cationic alkene complexes are susceptible to attack by nucleophiles. Metal alkene complexes are intermediates in many or most ... Alkene ligands lose much of their unsaturated character upon complexation. Most famously, the alkene ligand undergoes migratory ... In organometallic chemistry, a transition metal alkene complex is a coordination compound containing one or more alkene ligands ...
*  Ethylene oxide
"Epoxyethane (Ethylene Oxide)". Alkenes menu. Chemguide. Retrieved 5 October 2009. van Os; N. M., eds. (1998). Nonionic ... Oxidation by peroxy acids is efficient for higher alkenes, but not for ethylene. The above reaction is slow and has low yield, ...
*  Hydrazide
the "Gold Book") (1997). Online corrected version: (2006-) "Hydrazines". Shapiro, Robert H. (1976). "Alkenes from ...
*  Retro-Diels-Alder reaction
... alkenes > alkynes Because the Diels-Alder reaction exchanges two π bonds for two σ bonds, it is intrinsically thermodynamically ...
*  Bamford-Stevens reaction
... and Z-alkenes. As an alkene-generating transformation, the Bamford-Stevens reaction has broad utility in synthetic methodology ... The mechanism of this transformation is thought to proceed in a manner similar to the synthesis of alkenes through the Bamford- ... The Bamford-Stevens reaction is a chemical reaction whereby treatment of tosylhydrazones with strong base gives alkenes. It is ... Shapiro, R. H. (March 1976). "Alkenes from Tosylhydrazones". Organic Reactions. 23. New York: Wiley. pp. 405-507. ISBN 0-471- ...
*  Hydroamination
The four main categories are (1) nucleophilic attack on an alkene alkyne, or allyl ligand and (2) insertion of the alkene into ... Hydroamination is the addition of an N-H bond of an amine across a carbon-carbon multiple bond of an alkene, alkyne, diene, or ... First, the catalyst is activated by amide exchange, generating the active catalysis (i). Next, the alkene inserts into the Ln-N ... Both systems produced the desired allyl amines in high yield, which contain an alkene that can be further functionalized ...
*  Shapiro reaction
The position of the alkene in the product is controlled by the site of deprotonation by the organolithium base. In general, the ... Treatment of the phenylaziridinylhydrazone with 0.3 equivalents of LDA in ether resulted in the alkene shown below with a cis: ... En route to (-)-phytocassane D, a tricyclic ketone was subjected to Shapiro reaction conditions to yield the cyclic alkene ... To combat this problem, Yamamoto and coworkers developed an efficient stereoselective and regioselective route to alkenes using ...
*  N-Bromosuccinimide
It can be purified by recrystallization from 90-95 °C water (10 g of NBS for 100 mL of water). NBS will react with alkenes 1 in ... Haufe, G.; Alvernhe, G.; Laurent, A.; Ernet, T.; Goj, O.; Kröger, S.; Sattler, A. (2004). "Bromofluorination of alkenes". ... The preferred conditions are the portionwise addition of NBS to a solution of the alkene in 50% aqueous DMSO, DME, THF, or tert ... Preparative aspects of electrophilic three-component reactions with alkenes]. J. Prakt. Chem. 333 (5): 677-698. doi:10.1002/ ...
*  Oxymercuration reaction
Oxymercuration is not limited to an alkene reacting with water. Using an alkyne instead of an alkene yields an enol, which ... In oxymercuration, the alkene reacts with mercuric acetate (AcO-Hg-OAc) in aqueous solution to yield the addition of an ... The oxymercuration reaction is an electrophilic addition organic reaction that transforms an alkene into a neutral alcohol. ... Oxymercuration reduction is a popular laboratory technique to achieve alkene hydration with Markovnikov selectivity while ...
*  Hydroboration-oxidation reaction
This means that one mole of hydroborane will undergo the reaction with three moles of alkene. Furthermore, it is not necessary ... This hydroboration is repeated two additional times, successively reacting each B-H bond so that three alkenes add to each BH3 ... The reaction sequence is also stereoselective, giving syn addition (on the same face of the alkene): the hydroboration is syn- ... Until all hydrogens attached to boron have been transferred away, the boron group BH2 will continue adding to more alkenes. ...
*  Halohydrin
... s are usually prepared by treatment of an alkene with a halogen, in the presence of water. The reaction is a form of ... "Addition Reactions of Alkenes". Virtual Textbook of Organic Chemistry. Archived from the original on 2012-12-14. External link ...
*  E)-Stilbene
Gilbert, John C.; Martin, Stephen F. (2010). "10.6 - Bromination of Alkenes". Experimental Organic Chemistry: A Miniscale and ... Stilbene undergoes reactions typical of alkenes. Trans-stilbene undergoes epoxidation with peroxymonophosphoric acid, H3PO5, ...