Thermolyse

Die Thermolyse ist eine chemische Reaktion, bei der ein Ausgangsstoff durch Erhitzen in mehrere Produkte zersetzt wird. Sie wird gezielt zur Darstellung definierter Produkte oder reaktiver Zwischenstufen eingesetzt. Die Thermolyse unter höheren Temperaturen wird auch als Pyrolyse bezeichnet.[1]

Beispiele

NH4Cl (s) → NH3 (g) + HCl (g)
2 HgO (s) → 2 Hg (l) + O2 (g)
CaCO3 (s) → CaO (s) + CO2 (g)
  • Beim Erhitzen von Aziden entstehen unter Abspaltung von Stickstoff (N2) Nitrene.[6]
Decarboxylierung der proteinogenen α-Aminosäure L-Hydroxyprolin.[8]

Einzelnachweise

  1. ↑ Eintrag zu Thermolyse. In: Römpp Online. Georg Thieme Verlag, abgerufen am 10. Dezember 2022.
  2. ↑ Brockhaus ABC Chemie. VEB F. A. Brockhaus Verlag, Leipzig 1965, S. 72–73.
  3. ↑ Brockhaus ABC Chemie. VEB F. A. Brockhaus Verlag, Leipzig 1965, S. 1160.
  4. ↑ Otto-Albrecht Neumüller (Hrsg.): Römpps Chemie-Lexikon. Band 1: A–Cl. 8., neubearbeitete und erweiterte Auflage. Franckh’sche Verlagshandlung, Stuttgart 1979, ISBN 3-440-04511-0, S. 570–571.
  5. ↑ Siegfried Hauptmann: Organische Chemie. 2. Auflage. VEB Deutscher Verlag für Grundstoffindustrie, Leipzig 1985, ISBN 3-342-00280-8, S. 413–414.
  6. ↑ Siegfried Hauptmann: Organische Chemie. Verlag Harri Deutsch, 1985, ISBN 3-87144-902-4, S. 537.
  7. ↑ Siegfried Hauptmann: Organische Chemie. Verlag Harri Deutsch, 1985, ISBN 3-87144-902-4, S. 531.
  8. ↑ a b Sabine Wallbaum, Thomas Mehler, Jürgen Martens: Decarboxylation of α-Amino Acids containing two and three Stereogenic Centers: A Simple One-Step Procedure to Prepare Two Opticall Active β-Amino Alcohols and a Bicyclic Pyrrolidine Derivative. In: Synth. Commun. 24, 1994, S. 1381–1387, doi:10.1080/00397919408011741.

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