A series of water soluble complexes of general formula [(η-arene)Ru {(C5H4N)2CNRi}Cl]PF6 have been prepared by the reaction of [{(η-arene)RuCl2}2] with appropriate 2,2 ́-dipyridyl-N-alkylimine ligands (dpNRi) in the presence of NH4PF6 (where; R = Me or Et; arene = p-cymene, C6Me6, C6H6). The 2,2 ́-dipyridyl-N-alkylimine ligands are prepared by reaction of 2,2 ́-dipyridyl ketone with the correspond...

This in vitro study aimed at estimating the disappearance rates of 14 terpenes and terpenoids after 24-h incubation with mixed bacteria from caprine rumens. These compounds comprised nine monoterpene hydrocarbons (δ-3-carene, p-cymene, β-myrcene, (E)- and (Z)-β-ocimene, α-phellandrene, α-terpinene, γ-terpinene and α-terpinolene), four oxygenated monoterpenes ((E)- and (Z)-linalool oxide, 4-terp...

Limonene is a renewable cyclic monoterpene that easily obtainable from citrus peel and it commonly used as nutraceutical ingredient, antibacterial, biopesticide green extraction solvent well additive in healthcare, fragrance food beverage industries for its characteristic lemon-like smell. Indeed, the lack of toxicity makes limonene promising bio-alternative development wide range effective pro...

The compostion of the oils from flower and leaf of Achillea mellifolium L. subsp. mellifolium were collected during the flowering priod from Lar area to Damavand montain, altitude 3400 m in July 2003. The essential oils obtained by different methods of distillation (steam distillation and hydro-distillation), the percentage of oils for flower and leaf by steam distillation were 0.2 and 0.05% an...

The chemical composition of the essential oils obtained from the leaves and bracts of hydroponically cultivated Origanum dictamnus were analyzed by GC-MS techniques. Three different concentrations of phosphorus (5, 30, and 60 mg/L) in the nutrient solution were used for the cultivation, using the nutrient film technique (NFT). A total of 46 different compounds were identified and significant di...

The synthesis, oxidation reactions and transition metal complexes of a new ferrocenyl-bisphosphine, [Fe{C5H4P(C?CH)2}2] (1), are described. reaction bis(dichlorophosphino)ferrocene with four equivalents ethynylmagnesium bromide resulted in the formation 1 76% yield. between 1, aqueous H2O2 or elemental sulphur produced bis(oxide) bis(sulfide) derivatives, [Fe{C5H4P(E)(C?CH)2}2] (2 E = O, 3 S). ...

We report our third and final investigation into the use of ruthenium based compounds for catalyzing the hydrosilylation of methylvinyldimethoxysilane with methyldimethoxysilane. The catalytic mechanism of dichloro(p-cymene)ruthenium(II) (B1) is examined and compared to that of previously studied, less active catalysts. Density functional theory (DFT) has been applied to explore the possibility...