Search results for: PYRROLES

• Anion recognition by α-arylazo-N-confused calix[4]pyrroles

  Publication

  • R. Gu
  • S. Depraetere
  • J. Kotek
  • J. Budka
  • E. Wagner-Wysiecka
  • J. Biernat
  • W. Dehaen

  - Year 2005

  Zsyntezowano nowe azowe pochodne N-odwróconych kaliks[4]piroli na drodze sprzęgania z różnymi solami arylodiazoniowymi. Zbadano zdolność kompleksowania anionów w chlorku metylenu oraz w acetonitrylu przez otrzymane związki z zastosowaniem spektrofotometrii UV-Vis.

• Nonprotein nitrogenous compounds

  Publication

  • E. Malinowska-Pańczyk

  - Year 2023

  The non-protein nitrogen (NPN) fraction is an important group of food components for both technological and nutritional reasons. Free amino acids (FAAs), oligopeptides, amines, nucleic acids, and nucleotides, as well as other low-molecular nitrogen-containing components (cyanogenic glycosides, alkaloids, thiazoles, oxazoles, pyrroles, and pyrazines), are found in most foods. Their content depends on many factors, starting from...

• Practical Method for the Preparation of 2,2-Dimethyl-5- {aryl[(hetero)aryl]methyl}-1,3-dioxane-4,6-diones: Synthesis and Mechanistic Study

  Publication

  • E. Najda-Mocarska
  • A. Zakaszewska
  • K. Janikowska
  • S. Makowiec

  - SYNTHESIS-STUTTGART - Year 2016

  An efficient practical synthetic procedure has been developed for the synthesis of 2,2-dimethyl-5-{aryl[(hetero)aryl]methyl}- 1,3-dioxane-4,6-diones through Friedel–Crafts alkylation. The scope and limitation of the reaction of 2,2-dimethyl-5-arylidene-1,3-dioxane- 4,6-diones with π-excess aromatic systems have been delineated.

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