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12.3.3.1 Method 1: Oxidation by Manganate or Permanganate

DOI: 10.1055/sos-SD-012-00398

Grimmett, M. R.Science of Synthesis, (200212460.

Barium manganate in dry dioxane has been recommended for the conversion of 4,5-dihydroimidazoles into imidazoles,[‌503‌] but it is a very toxic reagent, and there are more appealing alternatives, e.g. potassium permanganate.[‌503‌,‌504‌] An example is the oxidation of 2-alkyl-4,5-dihydroimidazole 328 to 2-alkylimidazole 329 (Scheme 151).[‌504‌]

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References


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