A CONVENIENT SYNTHESIS OF 5-(4-PYRIDINYL)-2(1H)-PYRIDONES
A convenient synthesis of 3,4-bipyridine derivatives is reported.The addition of lithium salt derived from 2-alkoxy-5-bromopyridines 3a and 3b to N-ethoxycarbonylpyridinium chloride 4a gave the corresponding unstable 1,4-dihydropyridines which were readil
Fang, Woei-Ping,Shieh, Puh,Shiao, Min-Jen
p. 1585 - 1588
(2007/10/02)
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