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In one important reaction type, a main group organometallic compound of the type R-M (where R = organic group, M = main group centre metal atom) reacts with an organic halide of the type R'-X with formation of a new carbon-carbon bond in the product R-R'. The most common type of coupling reaction is the cross coupling reaction. [1] [2] [3]
A Proton-coupled electron transfer (PCET) is a chemical reaction that involves the transfer of electrons and protons from one atom to another. The term was originally coined for single proton, single electron processes that are concerted, [1] but the definition has relaxed to include many related processes.
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. [1] When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated.
The most well-studied examples of such transformations are those yielding spirocyclic phenol-dienone coupled products. The coupling partners in an intramolecular coupling must approach in a near-parallel arrangement to allow for orbital overlap; [ 10 ] these stringent geometric restraints on pre-cyclized compounds often render the process ...
In organic chemistry, a cross-coupling reaction is a reaction where two different fragments are joined. Cross-couplings are a subset of the more general coupling reactions. Often cross-coupling reactions require metal catalysts. One important reaction type is this:
In organic chemistry, the Kumada coupling is a type of cross coupling reaction, useful for generating carbon–carbon bonds by the reaction of a Grignard reagent and an organic halide. The procedure uses transition metal catalysts , typically nickel or palladium, to couple a combination of two alkyl , aryl or vinyl groups .
Oxidative coupling in chemistry is a coupling reaction of two molecular entities through an oxidative process.Usually oxidative couplings are catalysed by a transition metal complex like in classical cross-coupling reactions, although the underlying mechanism is different due to the oxidation process that requires an external (or internal) oxidant.
Dötz reaction; Eder reaction; Electromerism; Electron transfer (inner sphere and outer sphere) Étard reaction; Fenton oxidation; Fischer–Tropsch process; Fluorination; Formylation; Fowler process; Fukuyama coupling; Glaser coupling; Gomberg–Bachmann reaction; Haber–Weiss reaction; Halcon process; Halogenation; Hay coupling; Heck ...
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