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Preparation of hexa‐, penta‐ and tetraphenyl‐2,6‐ and ‐2,7‐naphthyridines
Author(s) -
Mataka Shuntaro,
Takahashi Kazufumi,
Tashiro Masashi
Publication year - 1983
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570200424
Subject(s) - chemistry , hexa , methylamine , oxidative cleavage , medicinal chemistry , condensation , ring (chemistry) , cleavage (geology) , condensation reaction , organic chemistry , catalysis , physics , geotechnical engineering , fracture (geology) , engineering , thermodynamics
Abstract Di‐ and triphenyldibenzoylpyridines ( 1 ) were prepared by the condensation reaction of 3, 4‐dibenzoyl‐2, 5‐diphenylthiophene ( 2 ) with methylamine derivatives 3 and by the subsequent oxidative ring cleavage of the resultant thieno[3, 4‐ c ]pyridines 4 . The reaction of 1 with 3 afforded polyphenyl‐2, 6‐ ( 5 ) and ‐2, 7‐naphthyridines ( 6 ).