A Ready One-pot Preparation for Pteridine and Isoxazolo[3,4-d]pyrimidine Derivatives
作者:José Ma Quintela、Carlos Peinador、Mar誕 J. Moreira、Rosa Toba、Marcos Chas
DOI:10.3987/com-06-10686
日期:——
Several new substituted pteridines and isoxazolo[5,4-d]pyrimidines are easily obtained by an efficient one-pot procedure from the reaction of N,N-dimethyldichloromethyleniminium chloride (phosgeniminium chloride) with the precursors β-enaminonitriles 2-amino-3-cyano-5-phenylpyrazine (5) and 5-amino-4-cyano-3-methylisoxazole (1), respectively.