5-{1-[3,3-Dimethyl-5-oxo-dihydro-furan-(2Z)-ylidene]-ethyl}-2,3,3-trimethyl-3,4-dihydro-2H-pyrrole-2-carbonitrile 在
potassium tert-butylate 、
氨 、
碘 、
碳酸根离子 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
生成 5-{1-[5-[5-{1-[3,3-Dimethyl-5-oxo-pyrrolidin-(2Z)-ylidene]-ethyl}-3,3-dimethyl-3,4-dihydro-pyrrol-(2Z)-ylidenemethylsulfanyl]-3,3-dimethyl-3,4-dihydro-pyrrol-(2Z)-ylidene]-ethyl}-2,3,3-trimethyl-3,4-dihydro-2H-pyrrole-2-carbonitrile