Mehrstufige Redoxsysteme, LVII. Quartärsalze pyridinsubstituierter 1,3,5‐Triazine – eine neue Klasse zwei‐ bis vierstufiger, reversibler Redoxsysteme

Abstract

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).