Abstract
The alkylation of arylaminomethylenecyanamides1 or cyano-imidothiocarbamates2 with α-halogen carbonyl compounds followed by base catalysed cyclization yields substituted 4-amino-imidazoles4. Imidazo[4,5-d]pyrimidones5, 6 and imidazo[4,5-b]pyridines7 can be obtained from4.
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