Synthesis of symmetrical and unsymmetrical bis(pyrrolo[2,3-d]pyrimidinyl)methanes

Abstract

Some novel symmetrical bis(pyrrolo[2,3-d]pyrimidinyl)methanes were synthesized via diheteroarylation of sp3 CH bond of acetophenones with molecular iodine and DMSO. Further, an efficient reaction protocol was developed with which both symmetrical and some novel unsymmetrical bis(pyrrolo[2,3-d]pyrimidinyl)methanes were synthesized. For this purpose, we have exploited the highly reactive and good leaving nature of 1,3-dimethylbarbituric acid.