CYCLIZATION OF N-ALKYLAMMONIUM CATIONS WITH BIFUNCTIONAL NUCLEOPHILES. 17. ANNELATION OF IMIDAZOLE AND 1,2,4-TRIAZINE RINGS WITH PYRAZINES VIA THE REACTIONS OF THIOSEMICARBAZIDES WITH PYRAZINIUM SALTS

DOI: 10.1007/BF00519151

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Chemistry of Heterocyclic Compounds p. 798 - 804 (1985)

Update date:2022-07-30

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Authors:

Baklikov, V. G.

Charushin, V. N.

Chupakhin, O. N.

Sorokin, N. N.

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Article abstract of DOI:10.1007/BF00519151

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

Full text of DOI:10.1007/BF00519151

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