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meso ‐Diketopyripentaphyrin and Diketopyrihexaphyrin as Macrocyclic Tripyrrinone Ligands for Ni II Ions
Author(s) -
Mori Daiki,
Yoneda Tomoki,
Suzuki Masaaki,
Hoshino Tyuji,
Neya Saburo
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201901375
Subject(s) - metalation , pyridine , chemistry , regioselectivity , conjugated system , ion , selectivity , stereochemistry , medicinal chemistry , organic chemistry , polymer , catalysis
We report expanded porphyrins with pyridine rings and two neighboring carbonyl groups, which allow Ni II ions to coordinate to the tripyrrinone‐type NNNO coordination structure with Ni−O bonds. The selectivity of tripyrrinone is superior to other pyrrolic or pyridinic cavities of expanded porphyrins. Introduction of α‐carbonyl pyridine next to the tripyrrolic conjugated structure is a powerful strategy for regioselective metalation of flexible expanded porphyrinoids.