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Porphomethenes and Porphodimethenes Synthesized by the Two‐ and Four‐Electron Oxidation of the meso ‐Octaethylporphyrinogen
Author(s) -
Benech JeanMarc,
Bonomo Lucia,
Solari Euro,
Scopelliti Rosario,
Floriani Carlo
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(19990712)38:13/14<1957::aid-anie1957>3.0.co;2-1
Subject(s) - electron , chemistry , materials science , physics , nuclear physics
Stepwise dealkylation of meso‐ octaethylporphyrinogen 1 yields porphomethene 2 and porphodimethene 3 , providing access to large quantities of these valuable intermediates. The synthetic sequence relies on SnCl 4 ⋅2 THF, Li, and H 2 O; the extent of dealkylation depends on the amount of SnCl 4 ⋅2 THF employed.