
Chemistry of Heterocyclic Compounds p. 798 - 804 (1985)
Update date:2022-07-30
Topics:
Baklikov, V. G.
Charushin, V. N.
Chupakhin, O. N.
Sorokin, N. N.
1- and 4-mono- as well as 1,4-disubstituted thiosemicarbazides undergo cyclization reactions upon treatment with N-alkylpyrazinium and quinoxalinium salts to give N-aminosubstituted imidazo<4,5-b>pyrazines and imidazo<4,5-b>quinoxalines, respectively.Thio
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