Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Bioinspired oxidation of benzyl alcohol: The role of environment and nuclearity of the catalyst evaluated by multivariate analysis

Journal Article · · Journal of Inorganic Biochemistry
 [1];  [2];  [2];  [2];  [3];  [4];  [2];  [4]
  1. Universidade do Estado de Santa Catarina, Joinville (Brazil); OSTI
  2. Wayne State Univ., Detroit, MI (United States)
  3. Universidade Federal de Santa Catarina (UFSC), Florianopolis, SC (Brazil)
  4. Universidade do Estado de Santa Catarina, Joinville (Brazil)
Inspired by copper-containing enzymes such as galactose oxidase and catechol oxidase, in which distinct coordination environments and nuclearities lead to specific catalytic activities, we summarize here the catalytic properties of dinuclear and mononuclear copper species towards benzyl alcohol oxidation using a multivariate statistical approach. Here, the new dinuclear [Cu2(μ-L1)(μ-pz)]2+ (1) is compared against the mononuclear [CuL2Cl] (2), where (L1)- and (L2)- are the respective deprotonated forms of 2,6-bis((bis(pyridin-2-ylmethyl)amino)methyl)-4-methylphenol, and 3-((bis(pyridin-2-ylmethyl)amino)methyl)-2-hydroxy-5-methylbenzaldehyde and (pz)- is a pyrazolato bridge. Copper(II) perchlorate (CP) is used as control. The catalytic oxidation of benzyl alcohol is pursued, aiming to assess the role of the ligand environment and nuclearity. The multivariate statistical approach allows for the search of optimal catalytic conditions, considering variables such as catalyst load, hydrogen peroxide load, and time. Species 1, 2 and CP promoted selective production of benzaldehyde at different yields, with only negligible amounts of benzoic acid. Under normalized conditions, 2 showed superior catalytic activity. This species is 3.5-fold more active than the monometallic control CP, and points out to the need for an efficient ligand framework. Species 2 is 6-fold more active than the dinuclear 1, and indicates the favored nuclearity for the conversion of alcohols into aldehydes.
Research Organization:
Wayne State Univ., Detroit, MI (United States)
Sponsoring Organization:
National Council for Scientific and Technological Development (CNPq); São Paulo Research Foundation (FAPESP); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001907
OSTI ID:
2417748
Alternate ID(s):
OSTI ID: 1960901
Journal Information:
Journal of Inorganic Biochemistry, Journal Name: Journal of Inorganic Biochemistry Journal Issue: C Vol. 240; ISSN 0162-0134
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (42)

Aerobic Oxidation of Primary Alcohols by a New Mononuclear CuII-Radical Catalyst journal April 1999
Metal-Free and Copper-Promoted Single-Pot Hydrocarboxylation of Cycloalkanes to Carboxylic Acids in Aqueous Medium journal November 2009
Benzyl Alcohol Oxidation on Carbon-Supported Pd Nanoparticles: Elucidating the Reaction Mechanism journal September 2014
Amavadin and Other Vanadium Complexes as Remarkably Efficient Catalysts for One-Pot Conversion of Ethane to Propionic and Acetic Acids journal February 2008
Molecular Recognition and Scavenging of Arsenate from Aqueous Solution Using Dimetallic Receptors journal October 2014
Synthesis and Characterization of Copper Complexes of a Tetrapyridyl Ligand, and Their Use in the Catalytic Aerobic Oxidation of Benzyl Alcohol journal November 2012
Tyrosinase: a comprehensive review of its mechanism
  • Sánchez-Ferrer, Álvaro; Neptuno Rodríguez-López, José; García-Cánovas, Francisco
  • Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, Vol. 1247, Issue 1 https://doi.org/10.1016/0167-4838(94)00204-T
journal February 1995
Catechol oxidase — structure and activity journal December 1999
The radical chemistry of galactose oxidase journal January 2005
Aerobic oxidation of benzylic alcohols with bis(3,5-di-tert-butylsalicylaldimine)copper(II) complexes journal December 2009
Multicopper complexes and coordination polymers for mild oxidative functionalization of alkanes journal December 2012
Mannich base Cu(II) complexes as biomimetic oxidative catalyst journal June 2019
Oxidation of benzyl alcohols to benzaldehydes in water catalyzed by a Cu(II) complex with a zwitterionic calix[4]arene ligand journal September 2015
Synthesis, characterization, electrochemical studies and catecholase-like activity of a series of mononuclear Cu(II), homodinuclear Cu(II)Cu(II) and heterodinuclear Cu(II)Ni(II) complexes of a phenol-based compartmental ligand journal November 2005
Mild aerobic oxidation of benzyl alcohols to benzaldehydes in water catalyzed by aqua-soluble multicopper(II) triethanolaminate compounds journal June 2009
New copper(II) dimer with 3-(2-hydroxy-4-nitrophenylhydrazo)pentane-2,4-dione and its catalytic activity in cyclohexane and benzyl alcohol oxidations journal March 2010
Biocatalytic oxidation of benzyl alcohol to benzaldehyde via hydrogen transfer journal August 2009
Redox Noninnocence of the Bridge in Copper(II) Salophen and Bis(oxamato) Complexes journal September 2015
Bimetallic Complexes Supported by a Redox-Active Ligand with Fused Pincer-Type Coordination Sites journal August 2015
Copper Active Sites in Biology journal January 2014
Mechanisms Whereby Mononuclear Copper Proteins Functionalize Organic Substrates journal January 1996
Copper/TEMPO-Catalyzed Aerobic Alcohol Oxidation: Mechanistic Assessment of Different Catalyst Systems journal October 2013
Dicopper(II) Complexes of H-BPMP-Type Ligands:  pH-Induced Changes of Redox, Spectroscopic ( 19 F NMR Studies of Fluorinated Complexes), Structural Properties, and Catecholase Activities journal February 2002
Ferrocene as an internal standard for electrochemical measurements journal September 1980
pH-Controlled Change of the Metal Coordination in a Dicopper(II) Complex of the Ligand H−BPMP:  Crystal Structures, Magnetic Properties, and Catecholase Activity journal August 2000
Models for iron-oxo proteins. Structures and properties of FeIIFeIII, ZnIIFeIII, and FeIIGaIII complexes with (.mu.-phenoxo)bis(.mu.-carboxylato)dimetal cores journal August 1989
Radical-Initiated Functionalization of Methane and Ethane in Fuming Sulfuric Acid journal January 1996
Catalytic Mechanism of Galactose Oxidase:  A Theoretical Study journal August 2000
Copper Centers in the Cryo-EM Structure of Particulate Methane Monooxygenase Reveal the Catalytic Machinery of Methane Oxidation journal June 2021
Deciphering the oxygen activation mechanism at the CuC site of particulate methane monooxygenase journal April 2021
Magnetic and structural properties of dinuclear singly bridged-phenoxido metal( ii ) complexes journal January 2015
Synthesis, structure and magnetic characterization of dinuclear copper( ii ) complexes bridged by bicompartmental phenolate journal January 2015
Multivariate analysis applied to oxidation of cyclohexane and benzyl alcohol promoted by mononuclear iron and copper complexes journal January 2020
Hydrogen-atom and oxygen-atom transfer reactivities of iron(iv)-oxo complexes of quinoline-substituted pentadentate ligands journal January 2022
Synthesis, structure, and spectroscopic properties of copper( II ) compounds containing nitrogen–sulphur donor ligands; the crystal and molecular structure of aqua[1,7-bis(N-methylbenzimidazol-2′-yl)-2,6-dithiaheptane]copper( II ) perchlorate journal January 1984
Alkanes to carboxylic acids in aqueous medium: metal-free and metal-promoted highly efficient and mild conversions journal January 2009
l-Proline: an efficient N,O-bidentate ligand for copper-catalyzed aerobic oxidation of primary and secondary benzylic alcohols at room temperature journal January 2013
Insights into metalloenzyme microenvironments: biomimetic metal complexes with a functional second coordination sphere journal January 2013
Some New Three Level Designs for the Study of Quantitative Variables journal November 1960
Benzoic acid and its derivatives as naturally occurring compounds in foods and as additives: Uses, exposure, and controversy journal November 2015
Particulate methane monooxygenase contains only mononuclear copper centers journal May 2019
Synthesis and Properties of Binuclear Cobalt(Ii) Oxygen Adduct with 2,6-Bis[Bis(2-Pyridylmethyl)Aminomethyl]-4-Methylphenol journal December 1981