Process for preparing 1,1' - dialkyl -4,4' - bipyridylium...

Details Process for preparing 1,1' - dialkyl -4,4' - bipyridylium... Process for preparing 1,1' - dialkyl -4,4' - bipyridylium...

C - Chemistry, Metallurgy

07

D

260/279.7

C07D 213/22 (2006.01)

Patent

CA 1113098

- 10 - ABSTRACT 1,1' dialkyl -4,4'- bipyridylium dihalide is prepared by heating 4,4'-` bipyridyl with an .angle.- halogen substituted organic acid of formula X R1COOH where X is C1 or Br, R is C1-3, preferably monochloroacetic acid alkyl group in the presence of water until the pH is below 4Ø

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