Höhere, kondensierte Ringsysteme. 6. Mitteilung [1]. NBS-Dehydrierungen an 9,10-Dihydrophenanthrensystemen Synthese von [2<sup>3</sup>] (2,7) Phenanthrenophan-trien
作者:P. Baumgartner、R. Paioni、W. Jenny
DOI:10.1002/hlca.19710540122
日期:——
The usefulness of the low temperature dehydrogenation by N-bromosuccinimide is illustrated in the 9, 10-dihydrophenantheren serie. The syntheses of 2, 7-di-chloromethyl-phenanthrene, 2, 7-di-bromomethyl-phenanthrene and hexabromo-[23] (2,7) phenanthrenophane by NBS-dehydrogenation are described. Debromination of hexabromo-[23] (2,7) phenanthrenophane led to [23] (2,7) phenanthrenophane-triene. The