Title of article :
An efficient synthesis of pyrido[2,3-d]pyrimidine derivatives and related compounds under ultrasound irradiation without catalyst
Author/Authors :
Tu، نويسنده , , Shujiang and Cao، نويسنده , , Longji and Zhang، نويسنده , , Yan and Shao، نويسنده , , Qingqing and Zhou، نويسنده , , Dianxiang and Li، نويسنده , , Chunmei، نويسنده ,
Abstract :
A series of pyrido[2,3-d]pyrimidine derivatives and related compounds were synthesized via the condensation reaction of an aldehyde, 2,6-diaminopyrimidine-4(3H)-one and either tetronic acid or 1,3-indanedione under ultrasonic irradiation without catalyst. This protocol has the advantages of higher yields, lower cost and convenient procedure.
Keywords :
3-d]pyrimidine , Ultrasound irradiation , 2 , Tetronic acid , 6-Diaminopyrimidine-4(3H)-one
Journal title :
Astroparticle Physics
