6-(4,5-Dihydro-3H-pyrrol-2-yl)-6-hydroxy-2,3-dimethyl-5,6-dihydro-1H-cyclopenta[b]pyrrol-4-one 在
三苯基膦 作用下,
以
乙腈 、
苯 为溶剂,
生成 2,3-Dimethyl-6-pyrrolidin-(2Z)-ylidene-5,6-dihydro-1H-cyclopenta[b]pyrrol-4-one 、 2,3-Dimethyl-6-pyrrolidin-(2E)-ylidene-5,6-dihydro-1H-cyclopenta[b]pyrrol-4-one