TY - JOUR T1 - Oxyfunctionalization of limonene using vanadium complex anchored on functionalized SBA-15 JF - Journal of Molecular Catalysis A-Chemical Y1 - 2005 A1 - Joseph, Trissa A1 - Halligudi, Shivappa B. KW - covalently anchored vanadium complex KW - functionalized Si-SBA-15 KW - limonene KW - oxofunctionalization KW - UHP AB -

VO(Salten) complexes, where Salten = 3-[N,N'-bis-3(salicylidenamino)ethyltriamine], have been covalently anchored on to functionalized SBA-15. The formation and integrity of the complex have been confirmed by elemental analysis, Fr-IR, X-ray diffraction (XRD) and BET measurements and the complex was used for the oxyfunctionalization of limonene in presence of urea hydroperoxide (UHP) as the oxidizing agent. The oxyfunctionalization of limonene resulted in limonene oxide, carvone, carvacrol and carveol. Anchored complex showed better catalytic activity than the neat complex, while the neat complexes has deactivated in the reaction due to formation of inactive alpha-oxo-bridged dimers, the covalently anchored complexes remained stable throughout the reaction. The anchored complex could be easily separated from the products and could be reused. (C) 2004 Elsevier B.V. All rights reserved.

PB - ELSEVIER SCIENCE BV CY - PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS VL - 229 IS - 1-2 U3 - Foreign U4 - 3.958 ER -