Tetrahedron Letters p. 2319 - 2322 (1993)
Update date:2022-08-03
Topics:
Marchand, Evelyne
Morel, Georges
A mixture of methyl chlorothioimidate, isocyanide and pyrinidine react in a sequence of N-imidoylpyridinium formation then cycloaddition step, to give 1-amonoimidazo [1,5-a] pyridazine, pyrimidine and pyrazine allows the preparation of corresponding fused 1 -amino-3-(methylthio) imidazolium chlorides.
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