Ultrasound-assisted Synthesis of Azlactone and its Reactions with Nucleophiles
作者:Boris V. Paponov、Sergey V. Lvov、Ekaterina V. Ichetovkina、Ilya A. Panasenko、Stepan G. Stepanian
DOI:10.1016/j.mencom.2012.09.016
日期:2012.9
4-(2-Oxoindolin-3-ylidene)-2-phenyl-5(4H)-oxazolone (azlactone) was synthesized as a mixture of E- and Z-isomers by ultrasound-assisted Erlenmeyer-Plochl reaction between isatin and N-benzoylglycine. Treatment of azlactone with nucleophiles causes opening of its oxazolone moiety.