Ruthenate(VI)-catalysed dehydrogenation of primary amines to nitriles, and crystal structures of cis-[Ru(bipy)2(NH2CH2Ph)2][PF6]2·0.5MeOH and cis-[Ru(bipy)2(NCPh)2][PF6]2·CH2Cl2 †

Autor:	Abdel G. F. Shoair, Bharti Reddy, Maria Suriaatmaja, William P. Griffith, Andrew J. P. White, David J. Williams
Rok vydání:	1998
Předmět:	Primary (chemistry) Stereochemistry Chemistry chemistry.chemical_element General Chemistry Crystal structure Medicinal chemistry Ruthenium Catalysis symbols.namesake symbols Proton NMR Amine gas treating Dehydrogenation Raman spectroscopy
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :2819-2826
ISSN:	1364-5447 0300-9246
Popis:	Catalytic dehydrogenation of benzylic and other primary amines RCH2NH2 to the corresponding nitriles RCN by the system trans-[Ru(OH)2O3]2–/S2O82– has been investigated. The complex cis-[Ru(bipy)2(NH2CH2Ph)2]2+ and the new cis-[Ru(bipy)2(NH2CH2R)2]2+ (R = o-, m- or p-ClC6H4, o-MeC6H4, o- or p-MeOC6H4); cis-[Ru(phen)2(NH2CH2R)2]2+ (R = Ph or p-MeOC6H4) and cis-[Os(bipy)2(NH2CH2Ph)2]2+ have been made, and dehydrogenation of the co-ordinated amine in the ruthenium complexes to the corresponding nitriles in cis-[Ru(L–L)2(NCR)2]2+ (L–L = bipy or phen) by peroxodisulfate demonstrated. The crystal structures of cis-[Ru(bipy)2(NH2CH2Ph)2][PF6]·0.5MeOH and cis-[Ru(bipy)2(NCPh)2][PF6]2·CH2Cl2, the latter a product of co-ordinated amine dehydrogenation by peroxodisulfate to give cis-[Ru(bipy)2(NH2CH2Ph)2]2+, were determined. Raman, infrared and 1H NMR data for the complexes have been measured; the latter suggest that the cis configurations of the amine complexes are retained in solution.
Databáze:	OpenAIRE
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