Kinetics and mechanism of diene exchange at six-co-ordinate chromium

Autor:	Denis T. Dixon, James A. S. Howell, Philip M. Burkinshaw
Rok vydání:	1980
Předmět:	Substitution reaction Diene Chemistry Stereochemistry Ligand Norbornadiene Kinetics chemistry.chemical_element General Chemistry Medicinal chemistry chemistry.chemical_compound Chromium Yield (chemistry) SN2 reaction
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :2237
ISSN:	1364-5447 0300-9246
DOI:	10.1039/dt9800002237
Popis:	The results of kinetic studies on the ligand-exchange and substitution reactions of (buta-1,3-diene) tetracarbonylchromium and tetracarbonyl(trans,trans-hexa-2,4-diene)chromium with cyclo-octa-1,5-diene(cod), norbornadiene (nbd), and P(OR′)3(R′= Me or Ph) to yield [Cr(cod)(CO)4], [Cr(nbd)(CO)4, and [Cr(CO)4{P(OR′)3}2] are consistent with a mechanism involving a stepwise displacement of the diene ligand, which is SN1 in nature for the diene exchange but contains a ligand-dependent SN2 component in the case of substitution by phosphite.
Databáze:	OpenAIRE
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