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We report the preparation of 1‐methyl‐ and 1‐ethyl‐2‐nitroimidazole‐5‐carboxaldehydes (Ia,b). For Ia three different routes of synthesis are described, which appear of general value for preparing 1‐alkyl substituted 2‐nitroimidazole‐5‐carboxaldehydes.
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CAVALLERI et al. (1972) studied this question.
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