Title Ionic liquid-accelerated Michael addition of pyrimidine and purine nucleobases to α,β-unsaturated esters: a rapid approach to carboacyclic nucleosides synthesis Type Article Keywords Ionic liquid, Michael addition, nucleobase, Cs2CO3, carboacyclic nucleoside, microwave Abstract Ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br) efficiently accelerates Michael addition of pyrimidine and purine nucleobases to α,β-unsaturated esters in the presence of catalytic amount of Cs2CO3 under microwave irradiation to give carboacyclic nucleosides in good to high yields and short reaction times. Researchers Abdolkarim Zare (First researcher) , Alireza Hasaninejad (Second researcher) , Roholla Safinejad (Third researcher) , Ahmad Reza Moosavi-Zare (Fourth researcher) , Ali Khalafi-Nezhad (Fifth researcher) , Mohammad Hassan Beyzavi (Not in first six researchers) , Mojtaba Miralai-Moredi (Not in first six researchers) , Esmail Dehghani (Not in first six researchers) , Parvin Kazerooni-Mojarrad (Not in first six researchers)