December 1991 Preparation of 2-Formyl-4-nitropyrroles Noboru Ono*, Emiko Muratani and Takuji Ogawa Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790, Japan Received June 3, 1991 The Vilsmeier reaction of 3-nitropyrroles which are prepared by the reaction of nitroalkenes with the sodium salt of tosylmethylisocyanide gives 2-formyl-4-nitropyrroles in good yields. 2053 J. Heterocyclic Chem., 28, 2053 (1991). Nitroazoles have been studied ...