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A New Method For The Synthesis Of Porphyrin-Alpha-Diones That Is Applicable To The Synthesis Of Trans-Annular Extended Porphyrin Systems
Mon, 06/22/2009 - 13:42 — admin
| Title | A New Method For The Synthesis Of Porphyrin-Alpha-Diones That Is Applicable To The Synthesis Of Trans-Annular Extended Porphyrin Systems |
| Publication Type | Journal Article |
| Year of Publication | 1991 |
| Authors | Crossley, M. J., Burn P. L., Langford S. J., Pyke S. M., and Stark A. G. |
| Journal | Journal Of The Chemical Society-Chemical Communications |
| Volume | - |
| Issue | 21 |
| Pagination | 1567–1568 |
| Date Published | nov |
| Abstract | Porphyrin-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. |