6-[(Dimethylamino)methylene]amino-1,3-dimethyluracil: A versatile aza-diene substrate for cycloaddition and michael-type reactions
作者： Eileen B. Walsh , Zhu Nai-Jue , Guo Fang , Heinrich Wamhoff
DOI: 10.1016/S0040-4039(00)80505-5
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摘要: Abstract 6-[(Dimethylamino)methylene]amino-1,3-dimethyluracil 1 undergoes formal [4+2] cycloaddition reactions with electron deficient olefins to give pyrido[2,3-d]pyrimidines. With DMAD or azodicarboxylates Michael addition occurs leading pyrrolo[3,4-c]pyridines (X-ray analysis) and theophylline derivatives.
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