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Über die Kondensationsprodukte des m- und o-Nitrobenzaldehyds mit o-Methoxychinaldin

✍ Scribed by J. Tröger; J. Danehl

Book ID
105348943
Publisher
John Wiley and Sons
Year
1925
Tongue
English
Weight
789 KB
Volume
110
Category
Article
ISSN
1615-4150

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## Abstract The oxidation product obtained by treatment of bulbocapnine methyl ether (**2a**) with iodine in ethanol/water is not the tetradehydroaporphinium salt **4** as assigned by __Gadamer__ & __Kuntze__, but a dimer of structure **3**. Reduction of **3** with zinc in dilute sulfuric acid give