Prelog tension

from Wikipedia, the free encyclopedia

The Prelog stress , also known as transannular interaction ( s ), is understood to be the interaction of two non-adjacent (transannular) hydrogen nuclei in central cycloalkane rings (7-14 ring). In such ring systems, a repulsive interaction between two axial hydrogen nuclei can occur. This leads to a slight change in the conformation of the ring, with angular deformation increasing the ring stress .

The 1,3-diaxial interaction in cyclohexane rings is also known as the Prelog stress.

It is named after the Swiss Nobel Prize winner Vladimir Prelog , who researched it.

See also

Web links

  • Prelog tension. Institute for Organic Chemistry - Faculty of Natural Sciences at the University of Hanover (PDF file, 128 kB)

literature

Individual evidence

  1. Entry on transannular strain . In: IUPAC Compendium of Chemical Terminology (the “Gold Book”) . doi : 10.1351 / goldbook.T06434 Version: 2.3.3.
  2. ^ Adalbert Wollrab: Organic chemistry . Springer, 2014, ISBN 978-3-642-45144-7 , pp. 184 , doi : 10.1007 / 978-3-642-45144-7 .
  3. Entry on transannular tension. In: Römpp Online . Georg Thieme Verlag, accessed on July 19, 2018.
  4. Alexander Senning: Elsevier's Dictionary of Chemoetymology: The Whys and Whences of Chemical Nomenclature and Terminology . Elsevier, Amsterdam 2007, ISBN 978-0-08-048881-3 , pp. 319 ( limited preview in Google Book search).