Grzegorz Romanowski, Justyna Budka, Iwona Inkielewicz-Stepniak
Oxidovanadium(V) complexes, [(+)VOL1-5 ] and [(-)VOL1-5 ] , with chiral tetradentate Schiff bases, which are products of monocondensation of S (‒)-3-amino-1,2-propanediol or R (+)-3-amino-1,2-propanediol with salicylaldehyde derivatives, have been synthesized. Different spectroscopic methods, viz. 1 H and 51 V NMR, IR, UV-Vis, and circular dichroism, as well as elemental analysis, have been used for their detailed characterization. Furthermore, the epoxidation of styrene, cyclohexene, and two monoterpenes, S (‒)-limonene and (‒)-α-pinene, using two oxidants, aqueous 30% H2 O2 or tert -butyl hydroperoxide (TBHP) in decane, has been studied with catalytic amounts of all complexes...
May 3, 2024: International Journal of Molecular Sciences