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Mehrstufige Redoxsysteme, LVII. Quartärsalze pyridinsubstituierter 1,3,5‐Triazine – eine neue Klasse zwei‐ bis vierstufiger, reversibler Redoxsysteme
Author(s) -
Gries WilliKurt,
Günther Erhard,
Hünig Siegfried
Publication year - 1991
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.1991199101176
Subject(s) - chemistry , redox , acetonitrile , pyridinium , medicinal chemistry , triazine , amalgam (chemistry) , electron transfer , salt (chemistry) , zinc , polymer chemistry , inorganic chemistry , photochemistry , organic chemistry , electrode
Multi‐Step Redox Systems, LVII. – Quaternary Salts of Pyridyl‐Substituted 1,3,5‐Triazines – A New Class of Two‐ to Four‐Step Reversible Redox Systems The synthesis of 1,3,5‐triazines 3–5a–e substituted by one to three 4‐pyridinium rings [ N ‐substituents Me, Et, Benzyl, CH 2 C(O)NMe 2 , CH 2 CO 2 C(O)OEt] is described. According to voltammetric data 3–5 constitute a new type of redox systems with reversible electron transfer in two to four separate steps. Reduction by zinc or sodium amalgam in acetonitrile produces coloured stable solutions of radicals (SEM).