Application of michael reaction on 2-phenyl-5-oxazolone

摘要

Michael reaction has been applied on 2-phenyl-5-oxazolone ring (1), which was used as Michael donor with arylmethylenecyanoacetic acid ethyl ester (2) as Michael acceptor. The Michael adducts had not been isolated but arylmethylene-2-phenyl-5-oxazolone (3) have been separated.