C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 213/80 (2006.01) C07C 229/30 (2006.01) C07C 255/54 (2006.01) C07C 317/22 (2006.01) C07C 323/20 (2006.01) C07C 323/58 (2006.01) C07D 401/04 (2006.01)
Patent
CA 2274212
The present invention provides a process to prepare a pyridine-2,3-dicarboxylate derivative via the reaction of a dialkyl alkoxy(or alkylthio)oxalacetate with an appropriately substituted acrolein compound in the presence of an ammonia source and a solvent. The present invention also provides useful intermediate compounds of formula IV. (see formula IV)
Wu Wen-Xue
American Cyanamid Company
Basf Aktiengesellschaft
Smart & Biggar
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