Facile synthesis of some novel 2 -substituted-4,6- diarylpyrimidines using4'-hydroxy-3',5'-dinitrochalcones andS- benzylthiouronium chloride

Various4'-hydroxy-3',5'-dinitrosubstituted chalcones 1and S-benzylthiouronium chloride (SBT) 2in thepresence ofDMF -organic bases (morpholine/ pyrrolidine/ piperidine) gave 4,6 -diaryl-2-(4-morpholinyl / 1 - pyrrolidinyl /1