Isomer differentiation by tri-osmium cluster complexation of substituted 1,3-cyclohexadienes

Autor:	Jacqueline G. M. Nairn, Brian F.G. Johnson, I.H. Sadler, Scott L. Ingham
Rok vydání:	1997
Předmět:	Steric effects Birch reduction Stereochemistry Organic Chemistry Cyclohexadienes chemistry.chemical_element Biochemistry Inorganic Chemistry chemistry Materials Chemistry Cluster (physics) Osmium Reactivity (chemistry) Physical and Theoretical Chemistry Isomerization
Zdroj:	Journal of Organometallic Chemistry. 531:237-242
ISSN:	0022-328X
DOI:	10.1016/s0022-328x(96)06880-5
Popis:	A series of methyl- and dimethyl-substituted 1,3-cyclohexadienes have been prepared from their aromatic analogues via Birch reduction and subsequent isomerisation with Fe(CO)3 fragments. These ligands were reacted with [Os3(CO)10(CH3CN)2] to form tri-osmium decacarbonyl cluster compounds containing the η4-coordinated substituted 1,3-cyclohexadienes. The various isomers of the substituted dienes show a dramatic difference in their reactivity towards the tri-osmium cluster and it is likely that this is due to the steric interactions between the methyl substituents and the cluster framework, with this effect being more marked for the di-substituted ligands.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::41034d10f005b1726a386e7261ea1130 https://doi.org/10.1016/s0022-328x(96)06880-5 Zobrazit plný text záznamu Full Text from ScienceDirect