Chemical reaction in which two ligands of a metal complex combine
In organometallic chemistry, a migratory insertion is a type of reaction wherein two ligands on a metal complex combine. It is a subset of reactions that very closely resembles the insertion reactions, and both are differentiated by the mechanism that leads to the resulting stereochemistry of the products. However, often the two are used interchangeably because the mechanism is sometimes unknown. Therefore, migratory insertion reactions or insertion reactions, for short, are defined not by the mechanism but by the overall regiochemistry wherein one chemical entity interposes itself into an existing bond of typically a second chemical entity e.g.:[1]
^Elschenbroich, C. (2006). Organometallics. Weinheim: Wiley-VCH. ISBN 978-3-527-29390-2.
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In organometallic chemistry, a migratoryinsertion is a type of reaction wherein two ligands on a metal complex combine. It is a subset of reactions that...
de-insertion of CO and alkenes, are of fundamental significance in many catalytic cycles as well. Widely employed applications of migratoryinsertion of...
the rate of migratoryinsertion of the carbonyl into the carbon-metal bond of the alkyl must be relatively fast. The rate of insertion of the carbonyl...
open coordination site or ethylene ligand, and is unable to undergo migratoryinsertion. Instead, solvolysis by methanol occurs, which gives the undesired...
yields complex II, and migratoryinsertion of the alkene into the carbon-palladium bond establishes the key carbon-carbon bond. Insertion takes place in a suprafacial...
formal insertion of the iridium(I) centre into the carbon-iodine bond of methyl iodide. After ligand exchange (iodide for carbon monoxide), the migratory insertion...
substitution oxidative addition and reductive elimination transmetalation migratoryinsertion β-hydride elimination electron transfer carbon-hydrogen bond activation...
of these compounds has provided insights into the mechanisms of migratoryinsertion reactions. Sulfur dioxide forms complexes with many transition metals...
LnMH2(CH2=CHR) transfer of one hydrogen atom from the metal to carbon (migratoryinsertion): LnMH2(CH2=CHR) → LnM(H)(CH2−CH2R) transfer of the second hydrogen...
ligands, becomes more electron poor, facilitating migratoryinsertion to the CO ligand. This migratoryinsertion gives a chromium metallacyclopropanone, which...
intermediate (see below). This intermediate would then undergo a 1,1- migratoryinsertion to form an osmylate ester which after hydrolysis would give the corresponding...
to the Pd(II) by ligand exchange. A migratoryinsertion causes the alkyne to undergo regioselective syn-insertion into arylpalladium bond. Regioselectivity...
function in alkene polymerization and stereochemistry, as well as migratoryinsertion. IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book")...
gives the intermediate M(H)(CN)Ln(alkene), which then undergoes migratoryinsertion to give an alkylmetal cyanide. The cycle is completed by the reductive...
side-on addition of an ethylene unit and a polymer chain can grow by migratoryinsertion. Chromium compounds also catalyse the trimerization of ethylene to...
it pertains to copper hydride-mediated hydroboration, after 1,2-migratoryinsertion (M.I.), a transmetalation can take place with pinacolborane (HBPin)...
character upon complexation. Most famously, the alkene ligand undergoes migratoryinsertion, wherein it is attacked intramolecularly by alkyl and hydride ligands...
This zirconium cation can coordinate an alkene or alkyne where migratoryinsertion of a methyl then takes place. The resultant vinyl or alkyl zirconium...
hydrogen/carbon monoxide atmosphere and consists of four stages: metal insertion, migratoryinsertion, heterolytic cleavage, and ligand exchange. Breit et al. generated...
insert across a vinyl tin double bond. After β-hydride elimination, migratoryinsertion, and protodestannylation, a 1,2-disubstituted olefin can be synthesized...
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