linoleic-acid and cardanol

Fatty acids-assisted superparamagnetic maghemite (γ-Fe

Topics: Anti-Infective Agents; Antineoplastic Agents; Biofilms; Candida albicans; Cell Survival; HCT116 Cells; Humans; Linoleic Acid; Magnetic Iron Oxide Nanoparticles; Membrane Glycoproteins; Methicillin-Resistant Staphylococcus aureus; Microbial Viability; Molecular Docking Simulation; Myristic Acid; Oleic Acid; Palmitic Acid; Peptidoglycan; Phenols; Protein Structure, Secondary; Pseudomonas aeruginosa; Stearic Acids

Cardanol, a constituent of cashew nutshell liquid (CNSL), was subjected to transfer hydrogenation catalyzed by RuCl(3) using isopropanol as a reductant. The side chain of cardanol, which is a mixture of a triene, a diene, and a monoene, was selectively reduced to the monoene. Surprisingly, it is the C8-C9 double bond that is retained with high selectivity. A similar transfer hydrogenation of linoleic acid derivatives succeeded only if the substrate contained an aromatic ring, such as a benzyl ester. TEM and a negative mercury test showed that the catalyst was homogeneous. By using ESI-MS, ruthenium complexes were identified that contained one, two, or even three molecules of substrate, most likely as allyl complexes. The interaction between ruthenium and the aromatic ring determines selectivity in the hydrogenation reaction.

Topics: 2-Propanol; Anacardium; Catalysis; Hydrogenation; Linoleic Acid; Molecular Structure; Nuts; Phenols; Polyenes; Ruthenium Compounds; Spectrometry, Mass, Electrospray Ionization