A synthesis of 4,7-dihydro-1H-dipyrrolo[3,2-b:2′,3′-d]pyrrole and 4,7-dihydro-4H-thieno[3,2-b]pyrrolo[2,3-d]pyrrole systems
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<jats:title>Abstract</jats:title><jats:p>N‐Methylpyrrole‐2‐carboxaldehyde (Ia) reacts with ethyl azidoacetate (II) to give the azidoacrylate (Ib) which cyclizes on heating to form the pyrrolopyrrole system (III).</jats:p>
収録刊行物
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- Tetrahedron Letters
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Tetrahedron Letters 30 1655-1656, 1989-01-01
Elsevier BV