C-amidoalkylation of pyrroles with N-trifluoromethylsulfonyl and N-arylsulfonyl polychloroaldehyde imines |
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Authors: | E. V. Kondrashov E. V. Rudyakova G. N. Rozentsveig I. B. Rozentsveig K. A. Chernyshev L. B. Krivdin G. G. Levkovskaya |
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Affiliation: | 1.Favorskii Irkutsk Institute of Chemistry, Siberian Division,Russian Academy of Sciences,Irkutsk,Russia |
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Abstract: | N-(Trifluoromethylsulfonyl) and N-arylsulfonyl polychloroacetaldehyde imines reacted with pyrrole, 1-alkyl-, 1-benzyl-, and 1-(4-nitrophenyl)-substituted pyrroles, and bis-pyrroles to give the corresponding 2-[1-(sulfonylamino)polychloroethyl]-1H-pyrroles or mixtures of 2- and 3-[1-(sulfonylamino)polychloroethyl]-1H-pyrroles, depending on the nature of the Schiff base and substituent on the pyrrole nitrogen atom and reaction conditions. The first synthesis of 2,5-disubstituted NH-pyrrole by reaction of pyrrole with Schiff bases was described. |
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