Green chemistry synthesis of selected aza heterocycles used in drugs

The present work aimed to study the selected organic reaction i.e. synthesis of 14-dihydro-23-quinoxalinedione 23-diphenyl quinoxaline and 4-(4-Hydroxyphenyl)-6-methyl-2-oxo-1234-tetrahydropyrimidine-5-carboxylic acid ethyl ester under some alternative green techniques such as microwave irradiation ultrasound grindstone and application of eco-friendly solvent like water and ethanol. The aim included investigation of the effect of techniques mentioned above on reaction time as well as improvement in yield in comparison to conventional methods. The products obtained were also characterised.