Highly selective oxidation of benzyl alcohol catalyzed by new peripherally tetra-substituted Fe(II) and Co(II) phthalocyanines

CAKIR V., SAKA E. T., BIYIKLIOĞLU Z., KANTEKİN H.

SYNTHETIC METALS, vol.197, pp.233-239, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 197
  • Publication Date: 2014
  • Doi Number: 10.1016/j.synthmet.2014.09.022
  • Journal Name: SYNTHETIC METALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.233-239
  • Keywords: Phthalocyanine, Iron, Cobalt, Benzyl alcohol, Oxidation, TBHP, CYCLOHEXENE OXIDATION, SPECTROSCOPIC CHARACTERIZATION, COBALT PHTHALOCYANINE, HOMOGENEOUS OXIDATION, MANGANESE PORPHYRINS, SOL IMMOBILIZATION, HYDROGEN-PEROXIDE, ORGANIC-REACTIONS, METAL-FREE, EFFICIENT
  • Karadeniz Technical University Affiliated: Yes

Abstract

In this study, new iron and cobalt phthalocyanines bearing (2-{2-[3-(()dimethylamino)phenoxy]ethoxy}ethoxy) groups at peripheral positions have been synthesized and characterized by the spectroscopic methods (IR, H-1 NMR, C-13 NMR, UV-vis, mass spectroscopies and elemental analysis). Catalytic activity of Fe(II) and Co(II) phthalocyanines have been investigated in the presence of an oxidant such as. TBHP (tert-buthylhydroperoxide), m-CPBA (m-chloroperoxybenzoic acid) and H2O2 (hydrogen peroxide). Fe(II) and Co(II) phthalocyanines exhibit excellent activity and high conversion under mild conditions. Substrate ratio, oxidant ratio, temperature and oxidant type have also been investigated in 3 h and found the best optimum reaction conditions in this catalytic system. (C) 2014 Elsevier B.V. All rights reserved.