An original one-pot synthesis of 5-(4-pyridyl)-benzo[c]-2,7-naphthyridine as key intermediate in the synthesis of amphimedine by metalation connected with cross-coupling reaction

Autor: F. Guillier, F. Nivoliers, Guy Quéguiner, Francis Marsais, Alain Godard
Rok vydání: 1994
Předmět:
Zdroj: Tetrahedron Letters. 35:6489-6492
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)78253-0
Popis: A short new route to 4,5-disubstituted-benzo[c]-2,7-naphthyridines has been developed. The strategy involves directed ortho metalation of pyridines following by an halogen dance reaction and biaryl cross-coupling as key steps. A concise and efficient one-pot synthesis of 4-chloro-5-(4-pyridyl)-benzo[c]-2,7-naphthyridine, as a key intermediate in the synthesis of amphimedine is described.
Databáze: OpenAIRE