Preparation of substituted and disubstituted-pyridine-2,3-dicarb

Details Preparation of substituted and disubstituted-pyridine-2,3-dicarb Preparation of substituted and disubstituted-pyridine-2,3-dicarb

1985-10-28

1988-02-02

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546321, 546318, 546322, C07D213803

Patent

active

047230118

ABSTRACT:
Pyridine-2,3-dicarboxylates of Formula I ##STR1## are prepared by reacting an alpha halo-beta keto ester of formula II ##STR2## with an alpha, beta-unsaturated aldehyde or ketone of formula III ##STR3## in the presence of a minimum of 2 molar equivalents of ammonium salt.

REFERENCES:
Newkome, "Pyridine and its Derivatives, Part 5" (1984) p. 170, Interscience Publisher, N.Y.
Bouvier, et al., Bull Soc. Chim. Fr. 711 (1963).
Bergmann, E. D. et al., J. Chem. Soc. C., 1968, pp. 1232-1235.
Klingsberg, E. "Pyridine and its Derivatives, Part One" (1960) Interscience Publishers, New York, pp. 417, 470, 471.
Chemical Abstracts, 49:15894b (1955).

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