Abstract
Abstract Michael addition reactions of chalcones and azachalcones with ethyl acetoacetate have been successfully performed in the presence of catalytic amount of K2CO3 (10 mol %) and under the high-speed vibration milling conditions. The reactions take place at ambient temperature without any solvent and full completion can be achieved in very short time (20–40 min). In most cases, conventional side reactions were avoided and thus high chemoselectivity and quantitative yields were achieved. The desired Michael adducts were exclusively obtained consisting of two diastereoisomers anti and syn, which were determined and assigned by 1H NMR spectroscopy.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
