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 |
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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 |
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