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The Aromatization of Hantzsch 1,4-Dihydropyridines by Tetrakis-Pyridine Cobalt (II) Dichromate (TPCD)

✍ Scribed by Wang, Bingxiang; Hu, Yuefei; Hu, Hongwen

Book ID: 127339555
Publisher: Taylor and Francis Group
Year: 1999
Tongue: English
Weight: 241 KB
Volume: 29
Category: Article
ISSN: 0039-7911
DOI: 10.1080/00397919908085893

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## Abstract We describe here, for the first time, that 1‐cyano‐3‐benzoyl‐1,2,3,10b‐tetrahydropyrrolo[2,1‐__a__]phthalazine (8), prepared by 1,3‐dipolar cycloaddition of 2‐phenacyl phthalazinium bromide (**6a**) with acrylonitrile (**7a**), can be aromatized by tetrakis‐pyridine cobalt (II) dichroma