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Completely Regioselective Synthesis of Directly Linked meso , meso and meso , β Porphyrin Dimers by One‐Pot Electrochemical Oxidation of Metalloporphyrins
Author(s) -
Ogawa Takuji,
Nishimoto Yoshihiro,
Yoshida Naoya,
Ono Noboru,
Osuka Atsuhiro
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990115)38:1/2<176::aid-anie176>3.0.co;2-a
Subject(s) - regioselectivity , porphyrin , electrochemistry , chemistry , photochemistry , combinatorial chemistry , catalysis , organic chemistry , electrode
The metal ion determines the reactivity upon electrochemical oxidation of metal porphyrins that are unsubstituted at the meso position. Thus, with Cu 2+ , Pd 2+ , and Ni +2 as the central ion (and for the free porphyrin base), directly linked meso , β porphyrin dimers 2 were formed, while Mg and Zn complexes afforded the corresponding directly linked meso , meso porphyrin dimers 1 . Ar=3,4‐ t Bu 2 C 6 H 3 .