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Synthesis of Azoimidazolium Dyes with Nitrous Oxide
Author(s) -
Tskhovrebov Alexander G.,
Naested Lara C. E.,
Solari Euro,
Scopelliti Rosario,
Severin Kay
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201410067
Subject(s) - chemistry , reagent , nitrous oxide , context (archaeology) , oxide , organic synthesis , organic chemistry , green chemistry , chemical synthesis , combinatorial chemistry , photochemistry , reaction mechanism , catalysis , paleontology , biochemistry , in vitro , biology
A new method for the synthesis of industrially important azoimidazolium dyes is presented. The procedure is based on a reagent which is rarely used in the context of synthetic organic chemistry: nitrous oxide (“laughing gas”). N 2 O is first coupled to N‐heterocyclic carbenes. Subsequent reaction with aromatic compounds through an AlCl 3 ‐induced CH activation process provides azoimidazolium dyes in good yields.