Reactions of Cyanopyrazines

Reactions of cyanopyrazines which lead to the formation of carboxypyrazines have been described in Section lA(2Xc), carbamoylpyrazines in Section 3A(3), thiocarbamoylpyrazines in Section 3D, 2-aminomethylpyrazines in Section VIII.1B(1), and bicyclic heterocycles in Sections V.5B(2), V.5F, and VIII.1D(6). 

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Reaction of cyanopyrazine and its 6-chloro derivative with hydrazine gives the corresponding amidrazones, these compounds have been prepared for testing as antitubercular agents.262b... 

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