C–H Bond activation by alumina: facile hydroxylation of chlorins at their saturated β-carbon by molecular oxygen and alumina
| Autor: | Dennis H. Burns, Dong Chuan Shi, Yue Hu Li |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
C h bond
Chemistry Metals and Alloys chemistry.chemical_element General Chemistry Pyrroline Ring (chemistry) Photochemistry Medicinal chemistry Catalysis Surfaces Coatings and Films Electronic Optical and Magnetic Materials Hydroxylation chemistry.chemical_compound Reagent Chlorin polycyclic compounds Materials Chemistry Ceramics and Composites Molecular oxygen Carbon |
| Zdroj: | Chemical Communications. :1677-1678 |
| ISSN: | 1364-548X 1359-7345 |
| DOI: | 10.1039/a802165a |
| Popis: | The mono-hydroxylation of a β-methylene carbon in the pyrroline ring of a chlorin requires only alumina and molecular oxygen as reagents, with good yields (70–80%) of the hydroxy chlorin obtained at room temperature in 2 h; this is the first example of a hydroxylated chlorin that has been prepared in a regiospecific manner starting from a chlorin, and the first demonstration of the mild activation of a C–H bond by alumina for its oxidation into a hydroxy group. |
| Databáze: | OpenAIRE |
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