1-phenethyl-1,4,5,6-tetrahydrocyclopenta[b]pyrrole 、
方酸 以
乙醇 为溶剂,
反应 2.0h,
以120 mg的产率得到(4Z)-3-oxo-4-[1-(2-phenylethyl)-5,6-dihydro-4H-cyclopenta[b]pyrrol-1-ium-2-ylidene]-2-[1-(2-phenylethyl)-5,6-dihydro-4H-cyclopenta[b]pyrrol-2-yl]cyclobuten-1-olate