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Die Reaktion von 2,2′,4′-Trihydroxyazobenzol-5-sulfonsäure mit Zirkonium

✍ Scribed by G. Denk


Book ID
112316593
Publisher
Springer
Year
1961
Tongue
English
Weight
82 KB
Volume
184
Category
Article
ISSN
1618-2650

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Die Reaktion von 2,2′-Bipyrrol mit Ortho
✍ Sepulveda-Boza, Silvia ;Breitmaier, Eberhard 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 English ⚖ 141 KB

**The Reaction of 2,2′‐Bipyrrole with Triethyl Orthoformate** 2,2′‐Bipyrrole (**1**) and triethyl orthoformate react in the presence of a Lewis acid to the hitherto unknown 1,9‐Bis(2‐pyrrolyl)pyrromethene (**4**) which was identified by spectroscopic methods (MS, NMR).