Synthesis of Pyrrolidine-Fused [34]- and [36]Octaphyrins via 1,3-Dipolar Cycloaddition
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The utility of expanded porphyrins as a dipolarophile in cycloaddition reactions has been investigated. The 1,3-dipolar cycloaddition of meso-octakis(pentafluorophenyl)[36]octaphyrin(1.1.1.1.1.1.1.1) with an azomethine ylide provides mono- and bis-pyrrolidine-fused octaphyrins regio- and stereoselectively. Treatment of the cycloadduct with MnO2 afforded [34]octaphyrin quantitatively.
创建时间：
2016-05-05
