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Synthesis 1999; 1999(5): 779-782
DOI: 10.1055/s-1999-3465
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High Yield Synthesis of 5,5′-Dimethyl-2,2′-bipyridine and 5,5″-Dimethyl-2,2′:6′,2″-terpyridine and Some Bisfunctionalization Reactions Using N-Bromosuccinimide

Ulrich S. Schubert* , Christian Eschbaumer, Georg Hochwimmer
  • *Lehrstuhl für Makromolekulare Stoffe, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany; Fax +49(89)28 91 35 62; E-mail: schubert@makroserv.tech.chemie.tu-muenchen.de
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Publication Date:
31 December 1999 (online)

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5,5′-Dimethyl-2,2′-bipyridine and 5,5″-dimethyl-2,2′:6′,2″-terpyridine were synthesized in multigram quantities in high yields utilizing organotin intermediates and Stille coupling procedures. The obtained ligands were dibrominated using N-bromosuccinimide.

2,2′-bipyridines - 2,2′:6′,2″-terpyridines - Stille coupling - organotin intermediates - radical bromination