An Organocatalytic Synthesis of Chiral Pyrano[2,3‐d]pyrimidines Through [3+3] Annulation of 1,3‐dimethyl‐barbituric Acid with 2‐(1‐Alkynyl)‐2‐alken‐1‐ones
European journal of organic chemistry（2018）
关键词
Pyrimidines,Asymmetric synthesis,Organocatalysis,[3+3] Annulation,Barbituric acid
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