Synthese des 9.10‐Cyclopenteno‐phenanthrens und einiger Methylhomologen
- 1 September 1955
- journal article
- research article
- Published by Wiley in European Journal of Inorganic Chemistry
- Vol. 88 (9) , 1395-1404
- https://doi.org/10.1002/cber.19550880910
Abstract
Die Umsetzung von 4.5‐Benzindan (II, R = H) und von 1‐Methyl‐4.5‐benzindan (II, R = CH3) mit Bernsteinsäure‐anhydrid nach Friedel‐Crafts liefert als Hauptprodukte die Ketosäuren vom Typ III, aus welchen 9.10‐Cyclopenteno‐phenanthren und die bisher unbekannten Methylhomologen 1‐Methyl‐, 1′‐Methyl‐ und 1.3′‐Dimethyl‐9.10‐cyclopenteno‐phenanthren (VII und X, R = H bzw. CH3) in guter Ausbeute dargestellt wurden.Keywords
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