Convenient Synthesis of 11-Aryl-1,12-dihydro-11H-naphthopyrano[2,3-d]pyrimidin-12-ones
摘要:
Various imidates 3 were successfully synthesized from naphthopyrans and ethyl orthoesters in moderate yields. These intermediates undergo rapid condensation with several primary amines to give the corresponding 11-aryl-1,12-dihydro-11H-naphthopyrano[2,3-d] pyrimidin-12-ones 4.
Convenient Synthesis of 11-Aryl-1,12-dihydro-11H-naphthopyrano[2,3-d]pyrimidin-12-ones
摘要:
Various imidates 3 were successfully synthesized from naphthopyrans and ethyl orthoesters in moderate yields. These intermediates undergo rapid condensation with several primary amines to give the corresponding 11-aryl-1,12-dihydro-11H-naphthopyrano[2,3-d] pyrimidin-12-ones 4.