Base-Promoted Vinyl Carbon–Bromine Bond Cleavage by Group 9 Metalloporphyrin Complexes
| Autor: | Ka Lai Wong, Kin Shing Chan, Chen Chen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Bromine Base (chemistry) 010405 organic chemistry Organic Chemistry chemistry.chemical_element 010402 general chemistry Photochemistry Cleavage (embryo) 01 natural sciences Medicinal chemistry Porphyrin 0104 chemical sciences Inorganic Chemistry Metal chemistry.chemical_compound chemistry Bromide visual_art visual_art.visual_art_medium Hydroxide Physical and Theoretical Chemistry Bond cleavage |
| Zdroj: | Organometallics. 35:1847-1853 |
| ISSN: | 1520-6041 0276-7333 |
| DOI: | 10.1021/acs.organomet.6b00228 |
| Popis: | Base-promoted vinyl carbon–bromine bond cleavage of styryl bromide by group 9 metalloporphyrin complexes was achieved to give the metal(III) porphyrin styryls M(ttp)(styryl) (ttp = 5,10,15,20-tetra-p-tolylporphyrinato dianion). Mechanistic studies suggest that [MII(ttp)]2 (M = Rh, Ir) cleaves the vinyl C–Br bond via an addition–elimination mechanism. The much less reactive CoII(ttp) undergoes a radical recombination with styryl radical which is generated by the hydroxide reduction of styryl bromide to give a radical anion with subsequent C–Br cleavage. |
| Databáze: | OpenAIRE |
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