Conversion of Some 2(3<i>H</i>)-Furanones into Pyrrolinotriazine and Oxazolopyrimidine Derivatives
作者:Wael S. I. Abou-Elmagd、Ahmed I. Hashem
DOI:10.1002/jhet.889
日期:2012.7
2(3H)‐Furanones 1 were utilized for the construction of pyrrolinotriazine and oxazolopyrimidine derivatives 4 and 9. Thus, 1 reacted with glycine in ethanol at 70°C to give the acids 2, which were cyclized into the pyrrolin‐5‐one derivatives 3 by the action of HCl/AcOH. The later compounds 3 were also obtained by refluxing the furanones 1 with glycine in glacial AcOH for 10 h. The carboxy functionality