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Palladium(0)‐catalyzed phenylation of imidazo[4,5‐ b ]pyridines
Author(s) -
Grivas Spiros,
Lindström Stefan
Publication year - 1995
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.5570320214
Subject(s) - chemistry , palladium , triphenylphosphine , catalysis , medicinal chemistry , pyridine , organic chemistry
The tetrakis(triphenylphosphine)palladium(O)‐catalyzed coupling of benzeneboronic acid with 2‐chloro, 6‐bromo and 6‐bromo‐2‐chloro derivatives of 1‐ and 3‐methylimidazo[4,5‐ b ]pyridines to novel 2‐phenyl‐, 6‐phenyl‐ and 2,6‐diphenylimidazo[4,5‐ b ]pyridines is described. The phenylation of imidazo[4,5‐ b ]‐pyridines containing labile hydrogens was not successful.