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1,3-Dipolar Cycloaddition Reactions of Pyridinium Azomethine Ylides Containing 5,6-Dicyanopyrazines.

✍ Scribed by Jae-yun Jaung; Young-Sik Jung

Publisher
John Wiley and Sons
Year
2004
Weight
117 KB
Volume
35
Category
Article
ISSN
0931-7597

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## Abstract Azomethine ylides generated from 5‐(alkoxycarbonylmethyl)phenanthridinium cations were studied in 1,3‐dipolar cycloadditions with dimethyl maleate and dimethyl fumarate as dipolarophiles. The cycloadducts with the pyrrolidino[1,2‐f]phenanthridine skeleton easily underwent dehydrogenatio