Search results for: OXIDATIVE CYCLIZATION

• Transition-Metal-Promoted Oxidative Cyclization To Give 1,2,4-Trisubstituted Carbazole Scaffolds

  Publication

  • M. Witkowska
  • M. Ryczkowska
  • S. Makowiec

  - SYNTHESIS-STUTTGART - Year 2019

  Herein, we describe the synthesis of a 1,2,4-trisubstituted carbazole core from 5-(1H-indol-3-yl)-3-oxopentanoic acid esters or amides. For oxidative cyclization, we tested two different approaches. First, we used manganese triacetate as a conventional moderate oxidizer to ensure the radical course of the reaction. Second, we examined the use of a more complex oxidizing agent I2/Me(OTf)3. In both cases, formation of a fused-ring...

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• Oxidative Medicine and Cellular Longevity

  Journals

  ISSN: 1942-0900 , eISSN: 1942-0994

• Oxidatively Damaged DNA/Oxidative Stress in Children with Celiac Disease

  Publication

  • A. Szaflarska-Popławska
  • A. Siomek
  • M. Czerwionka-Szaflarska
  • D. Gackowski
  • R. Różalski
  • J. Guz
  • A. Szpila
  • E. Zarakowska
  • R. Oliński

  - CANCER EPIDEMIOLOGY BIOMARKERS & PREVENTION - Year 2010

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• Effect of head-to-tail cyclization on conformation of histatin-5

  Publication

  • E. Sikorska
  • E. Kamysz

  - JOURNAL OF PEPTIDE SCIENCE - Year 2014

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• Effect of Disulfide Cyclization of Ultrashort Cationic Lipopeptides on Antimicrobial Activity and Cytotoxicity

  Publication

  • D. Neubauer
  • M. Jaśkiewicz
  • E. Sikorska
  • S. Bartoszewska
  • M. Bauer
  • M. Kapusta
  • M. Narajczyk
  • W. Kamysz

  - International Journal of Molecular Sciences - Year 2020

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• JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES

  Journals

  ISSN: 1203-8407

• Simple and novel synthesis of 3-(thio)phosphoryl-β-lactams by radical cyclization

  Publication

  • P. Punda
  • S. Makowiec

  - NEW JOURNAL OF CHEMISTRY - Year 2013

  Radical cyclization of phosphono-acetenamides promoted by manganese(III) acetate leads exclusively to the formation of 3-phosphoryl-β-lactams. The thiophosphoryl analogues were also prepared using this method. In particular, the presented protocol does not require the use of noble metals, while comparable methods do.

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• OXIDATION OF METALS

  Journals

  ISSN: 0030-770X , eISSN: 1573-4889

• OXIDATION COMMUNICATIONS

  Journals

  ISSN: 0209-4541

• Convenient synthesis of 3-phosphono-β-lactams through the cyclization ofN-alkenyl-phosphonoacetamides

  Publication

  • P. Punda

  - Year 2012

  Oxidative cyclization through the treatment by the transition metals is convenientsynthetic tool with a great number of applications. In the most cases the result is the formationof C-C bond between generated radical and unsaturated part of the same or another molecule.As it was presented by Trogolo it is also suitable way to obtain 4-membered heterocyclicβ-lactamic ring[1]. In this communicate we want to present new application...