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ChemInform Abstract: Pyrrole Pigments

✍ Scribed by K. M. SMITH

Publisher
John Wiley and Sons
Year
2010
Weight
22 KB
Volume
28
Category
Article
ISSN
0931-7597

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## Abstract The 5‐(arylnitromethylene)‐3‐pyrrolin‐2‐ones **1‐5**, the 5‐nitrobilin‐**1,19**‐diones **7,8**, and the 5‐nitropyrromethenone **6** are shown to decompose in acidic media to yield maleimides according to fragmentation reactions of nitronic acids. This fragmentation reaction elucidates t