5-ethylidene-4-methyl-2(5H)-furanone 、
苄胺 在
CH2Cl2 petrol 、 EtOAc petrol 作用下,
反应 72.0h,
以to yield-1-benzyl-5-ethyl-5-hydroxy 4-methyl-1,5-dihydropyrrol-2-one as colourless crystals m.p. 129-132° (70%)的产率得到1-benzyl-5-ethyl-5-hydroxy-4-methyl-1,5-dihydropyrrol-2-one