A New Method For The Synthesis Of Porphyrin-Alpha-Diones That Is Applicable To The Synthesis Of Trans-Annular Extended Porphyrin Systems

TitleA New Method For The Synthesis Of Porphyrin-Alpha-Diones That Is Applicable To The Synthesis Of Trans-Annular Extended Porphyrin Systems
Publication TypeJournal Article
Year of Publication1991
AuthorsCrossley, M. J., Burn P. L., Langford S. J., Pyke S. M., and Stark A. G.
JournalJournal Of The Chemical Society-Chemical Communications
Volume-
Issue21
Pagination1567–1568
Date Publishednov
AbstractPorphyrin-alpha-diones can be prepared by photooxidation or SeO2-oxidation of beta-hydroxyporphyrins, which are in turn readily synthesized from the corresponding copper(II) or nickel(II) 2-halo- and 2-sulphinyl-porphyrins by reaction with the anion of E-benzaldoxime; the efficient conversion of the porphyrinoquinoxaline 6 into the diquinoxalino[2,3-g, 2,3-q]porphyrin 9 illustrates the usefulness of the new methodology for the synthesis of trans-annular extended porphyrin systems.