Synthese de 2h-pyrroles et de pyrroles: action de carbanions sur des 2H-azirines ou des sels de N,N,N-trimethylhydrazonium |
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| Authors: | André Laurent Pierre Mison Abdelhafid Nafti Nicole Pellissier |
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| Affiliation: | Laboratoire de Chimie Organique, ERA CNRS 611, Universite Claude Bernard, 43, Boulevard du 11 Novembre 1918, 69621 Villeurbanne, France |
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| Abstract: | Dimsyl sodium reacts with 2H-azirines 2 to give amino ethylenic sulfoxide 5E. The same reaction is observed from N,N,N-trimethylhydrazonium salt 1 using an excess of dimsylsodium. Carbanions of ketone or nitrile react with 2H-azirine or N,N,N-trimethylhydrazonium to produce 2H-pyrroles 6–13, 20 or pyrroles 18, 19. This reaction is the most convenient general route to 2H-pyrroles. |
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