@article{OthmanWollenberger2020,
  author    = {Othman, Abdelmageed M. and Wollenberger, Ulla},
  title     = {Amperometric biosensor based on coupling aminated laccase to functionalized carbon nanotubes for phenolics detection},
  series = {International journal of biological macromolecules},
  volume    = {153},
  journal   = {International journal of biological macromolecules},
  publisher = {Elsevier},
  address   = {New York, NY [u.a.]},
  issn      = {0141-8130},
  doi       = {10.1016/j.ijbiomac.2020.03.049},
  pages     = {855 -- 864},
  year      = {2020},
  abstract  = {A biosensor for phenolic compounds based on a chemically modified laccase from Coriolus hirsula immobilized on functionalized screen-printed carbon electrodes (SPCEs) was achieved. Different enzyme modifications and immobilization strategies were analyzed. The electrochemical response of the immobilized laccase on SPCEs modified with carboxyl functionalized multi-walled carbon nanotubes (COOH-MWCNT) was the highest when laccase was aminated prior to the adsorption onto the working electrode. The developed lactase biosensor sensitivity toward different phenolic compounds was assessed to determine the biosensor response with several phenolic compounds. The highest response was obtained for ABTS with a saturation value of I-max = 27.94 mu A. The electrocatalytic efficiency (I-max/K-m(app)) was the highest for ABTS (5588 mu A mu M-1) followed by syringaldazine (3014 mu A.mu M-1). The sensors were considerably stable, whereby 99.5, 82 and 77\% of the catalytic response using catechol as substrate was retained after 4, 8 and 10 successive cycles of reuse respectively, with response time average of 5 s for 12 cycles. No loss of activity was observed after 20 days of storage.},
  language  = {en}
}
@article{SchmidtBergerKellingetal.2011,
  author    = {Schmidt, Bernd and Berger, Ren{\´e} and Kelling, Alexandra and Schilde, Uwe},
  title     = {Pd-Catalyzed [2+2+1] coupling of alkynes and arenes phenol diazonium salts as mechanistic trapdoors},
  series = {Chemistry - a European journal},
  volume    = {17},
  journal   = {Chemistry - a European journal},
  number    = {25},
  publisher = {Wiley-Blackwell},
  address   = {Malden},
  issn      = {0947-6539},
  doi       = {10.1002/chem.201100609},
  pages     = {7032 -- 7040},
  year      = {2011},
  abstract  = {Alkynes and phenol diazonium salts undergo a Pd-catalyzed [2+2+1] cyclization reaction to spiro[4,5]decatetraene-7-ones. This structure was confirmed for one example by X-ray single-crystal structure analysis. The reaction is believed to proceed through oxidative addition of the phenol diazonium cation to Pd(0), subsequent insertion of two alkynes, followed by irreversible spirocyclization.},
  language  = {en}
}
@article{SchmidtRiemer2016,
  author    = {Schmidt, Bernd and Riemer, Martin},
  title     = {Microwave-Promoted Deprenylation: Prenyl Ether as a Thermolabile Phenol Protecting Group},
  series = {Synthesis},
  volume    = {48},
  journal   = {Synthesis},
  publisher = {Thieme},
  address   = {Stuttgart},
  issn      = {0039-7881},
  doi       = {10.1055/s-0035-1561366},
  pages     = {1399 -- 1406},
  year      = {2016},
  abstract  = {para-Substituted aryl prenyl ethers undergo a deprenylation reaction upon microwave irradiation. This offers the opportunity to use a prenyl ether as a thermolabile protecting group in the synthesis of natural products with a chromone structure, which proceeds via a tandem deprenylation/6-endo-cyclization sequence.},
  language  = {en}
}