Process for preparing 2-aminopyridine derivatives

Details Process for preparing 2-aminopyridine derivatives Process for preparing 2-aminopyridine derivatives

2007-05-22

2007-05-22

Parsa, J. (Department: 1621)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S304000

Reexamination Certificate

active

11209919

ABSTRACT:
A method for preparing 2-aminopyridine derivatives, which comprises substituting of fluorine for hydrazine moiety and reducing with hydrogen using 3-substituted-2,5,6-trifluoropyridine as a starting material, provides 2-aminopyridine derivatives having a purity over 98% under a mild reaction condition.

REFERENCES:
Banks et al., N-Halo compounds, Journal of Chemical Society, Perkin Transaction I, 817-821 (1980).

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