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Synthesis 1990; 1990(9): 795-798
DOI: 10.1055/s-1990-27018
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1-Hydroxyimidazole Derivatives IV. Quaternary Salts Derived from 1-Hydroxy-1H-imidazoles

Gerhard Laus* , Josef Stadlwieser, Wilhelm Klötzer
  • *Institut für Organische und Pharmazeutische Chemie, Universität Innsbruck, Innrain 52a, A-6020 Innsbruck, Austria
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Publication Date:
17 September 2002 (online)

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General procedures for the synthesis of 3-substituted 1-alkyloxy,1-arylmethyloxy, and 1-phenyloxyimidazolium salts are described. 1,3-Bis(arylmethyloxy)imidazolium salts can be prepared using phase transfer conditions for the alkylation of 1-hydroxy-1H-imidazole 3-oxides. When the hydroxy group of 1-hydroxy-1H -imidazoles is protected during quaternization, 1-substituted imidazole 3-oxides are obtained.