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{{Short description|Organic reaction which inserts an alkene into a C-H bond of ethylene}} ...he formal [[Insertion reaction|insertion]] of an [[alkene]] into the [[C-H bond]] of [[ethylene]] ({{chem2|H2C\dCH2}}): ...

...or molecular fragment) interposes itself into an existing [[Chemical bond|bond]] of typically a second chemical entity ''e.g.'': ...ns are reversible, the removal of the small molecule from the metal-ligand bond is called extrusion or elimination. ...

...or1-last=Knipe|editor1-first=A.C.|title=March's Advanced Organic Chemistry Reactions, Mechanisms, and Structure.|date=2007|publisher=John Wiley & Sons|location= ...00081a005|bibcode=1990EnST...24.1655R}}</ref> There is a concern that such reactions may lead to the presence of carcinogenic compounds{{which|date=May 2024}} i ...

...ght. In that projection, the '''vector''' (arrow) pointing from :Nu to the carbon of the carbonyl is mirrored across plane I to make clear that the nucleophi ...and controlling diastereofacial selectivity in carbon-carbon bond-forming reactions, Aldrichimica Acta 23(4):94-111, esp. p. 101, see {{cite web |url=http://ww ...

...t3=Breher |first3=Frank |last4=Schulz |first4=Axel |date=2023-08-23 |title=Heteroatom-Based Diradical(oid)s |url=https://pubs.acs.org/doi/10.1021/acs.chemrev.3c0 ...|last4=Hay |first4=P. Jeffrey |date=1973-11-01 |title=Generalized valence bond description of bonding in low-lying states of molecules |url=https://pubs.a ...

...(e.g., a d orbital) to an orbital localized on the ligands (e.g. the [[Pi bond|π* orbital]] of an aromatic ligand). This initial excited electronic state ...the excited electron. This pathway is slow because it is [[Spin-forbidden reactions|spin-forbidden]] so the triplet excited state has a substantial average lif ...