Wu Jian-yi
2001
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
Pyridinedicarboxylic acid 1,4-dihydra-2,6-dimethy-diethylester was synthesized from β-diketo compound, formaldehyde and amine in the presence of amine salt as a phase tronsfer eatalyst. Under the optimum reaction conditions the total yield is 88% with 98% purity.