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Synthesis 1994; 1994(2): 181-184
DOI: 10.1055/s-1994-25434
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Conjugated Azoalkenes; Part XV: Facile and Direct Synthesis of New 3-Phosphonopyrrole and 3a-Phosphonopyrrolo[2,3-b]pyrrole Derivatives

Orazio A. Attanasi* , Paolino Filippone, Daniela Giovagnoli, Amedeo Mei
  • *Istituto di Chimica Organica della Facoltà di Scienze, Università di Urbino, Piazza della Repubblica 13, I-61029 Urbino, Italy
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Publication Date:
17 September 2002 (online)

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1-Amino-3-phosphonopyrroles were prepared by direct reaction between conjugated azoalkenes and dimethyl (2-oxopropyl)phosphonate while the treatment of conjugated azoalkenes with diethyl cyanomethylphosphonate gives 1,2-diamino-3-phosphonopyrroles or 3a-phosphono-1,3a,6,6a-tetrahydropyrrolo[2,3-b]pyrroles, depending on the molar ratios of the reagents.