62681-28-1Relevant articles and documents
A novel and facile synthesis of 2-oxo-1,2-dihydropyridine-fused 1,3-diazaheterocycles via heterocyclic ketene aminals and Konevenagel adducts formed by phthalic anhydride and ethyl cyanacetate
Zou, Min-Ming,Zhu, Feng-Juan,Tian, Xue,Ren, Li-Ping,Shao, Xu-Sheng,Li, Zhong
, p. 1515 - 1519 (2015/01/09)
An efficient synthetic pathway to 2-oxo-1,2-dihydropyridine-fused 1,3-diaza heterocycles from heterocyclic ketene aminals, phathalic anhydride and ethyl cyanacetate was established. This protocol involved aza-ene reaction/imine-enamine tautomerization/enamine-ester exchange/ring-opening reaction sequence.