Preparation of 1-(4-nitrophenyl)-2-formylpyrrole from furfural
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The products of the condensation of furfural with p-nitroaniline in an acidic medium in various solvents were investigated. It was established that the well-known method gives 1-(4-nitrophenyl)-2-formylpyrrole in no higher than 55% yield and 2,3-bis(4-nitrophenylamino)-2-formylpyrrole in 27% yield. A method based on a previously described method is recommended (the products are obtained in up to 72% yields).
KeywordsOrganic Chemistry Acidic Medium Furfural Formylpyrrole
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