Title of article :
A novel product from the reaction of 6-aminopyrimidines and 3-formylchromone
Author/Authors :
Quiroga، نويسنده , , Jairo and Rengifo، نويسنده , , Armando and Insuasty، نويسنده , , Braulio and Abon??a، نويسنده , , Rodrigo and Nogueras، نويسنده , , Manuel and S?nchez، نويسنده , , Adolfo، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2002
Abstract :
The reaction of 6-aminopyrimidines 4 with 3-formylchromone under microwave irradiation in dry media and classical heating in absolute ethanol afforded in all cases the unexpected 6-hydroxy-6,9-dihydrobenzopyranopyrido[2,3-d]pyrimidin-8-ones 6a–e (alternatively named, 6-hydroxy-6,9-dihydro-5-oxa-9,11,12-triazabenzo[a]anthracen-8-ones). The structure of the final compounds was determined on the basis of NMR measurements, especially by 1H,1H- and 1H,13C COSY, DEPT, HSQC, HMBC and NOESY.
Keywords :
6-aminopyrimidine , 3-formylchromone , 3-d]pyrimidine , microwave irradiation
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
