Synthesis of Functionalized, Sterically Congested Calix [4] phyrin Macrocycles Using Donor–Acceptor??Substituted Cyclopropanes–First Example of a Mono??meso?? …

MH Beyzavi, D Lentz, HU Reissig…

文献索引：Beyzavi, M. Hassan; Lentz, Dieter; Reissig, Hans-Ulrich; Wiehe, Arno European Journal of Organic Chemistry, 2013 , # 2 p. 269 - 282

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被引用次数: 6

摘要

Abstract Calix [4] phyrins are an important class of hybrid macrocyclic systems at the interface between porphyrins and calixpyrroles (porphyrinogens). A new stepwise synthesis of oxidation-resistant meso-hydrogenated calix [4] phyrins is reported, which allows variable substitution in the residues of their sp 2-meso-centers without the need for a porphyrin intermediate. It relies on the acid-catalyzed condensation of a sterically hindered donor– ...