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11. Anil-Synthese. 16. Mitteilung. Über die Herstellung von styryl-derivaten des 2-phenyl-imidazo [1,2-a]pyridins

✍ Scribed by Jean-Paul Pauchard; Adolf Emil Siegrist

Publisher
John Wiley and Sons
Year
1978
Tongue
German
Weight
567 KB
Volume
61
Category
Article
ISSN
0018-019X

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✦ Synopsis

Preparation of styryl derivatives of 2‐phenyl‐imidazo [1, 2‐a]pyridine

2‐(p‐Tolyl)‐imidazo [1, 2‐a]pyridines and 7‐methyl‐2‐phenyl‐imidazo [1,2‐a]‐pyridines can be converted, in dimethylformamide, on reaction with anils of aromatic aldehydes in the presence of potassium hydroxide or potassium t‐butoxide, into the corresponding 2‐(stilben‐4‐yl)‐ and 2‐phenyl‐7‐styry1‐imidazo [1, 2‐a]‐pyridines (‘Anil‐Synthesis’). The 2‐(p‐tolyl)‐imidazo [1,2‐a]pyridines react far less readily than the 7‐methyl‐2‐phenyl‐imidazo[1,2‐a]pyridines.

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