The conversion of a pyrrole trimer derivative into a 4,5,6,7‐tetrahydro‐4‐(pyrrol‐2‐yl)indol‐7‐yltosylaminoindole |
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Authors: | Yuekun Zhao Madeleine Helliwell John A Joule |
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Abstract: | Vilsmeier formylation of trans‐1‐(4‐methylphenylsulfonyl)‐2,5‐bis(pyrrol‐2‐yl)pyrrolidine leads to cleavage of the central ring then a reclosure resulting in the formation of trans‐N‐2‐formyl‐4‐(5‐formylpyrrol‐2‐yl)‐4,5,6,7‐tetrahydroindol‐7‐yl]toluenesulfonamide, C21H21N3O4S. |
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