Wolff Rearrangement of α-Diazoketones Using in Situ Generated Silver Nanoclusters as Electron Mediators
Autor: | Surendra G. Sudrik, Jadab Sharma, Kunjukrishna P. Vijayamohanan, Harikisan R. Sonawane, Nirmalya K. Chaki, Vilas B. Chavan |
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Rok vydání: | 2006 |
Předmět: | |
Zdroj: | Organic Letters. 8:1089-1092 |
ISSN: | 1523-7052 1523-7060 |
DOI: | 10.1021/ol052981w |
Popis: | [reaction: see text] We report Wolff rearrangement of alpha-diazoketones by in situ generated silver nanoclusters (Ag(n)(), 2-4 nm) from silver(I) oxide (Ag(2)O) involving a nonclassical electron-transfer process. Our results show that Ag(n)()(+)/Ag(n)()(0) redox couple allows the initial removal of an electron from alpha-diazoketone and its back-donation after chemical reaction(s). Controlled potential coulometry (CPC) of various alpha-diazoketones results in the realization of Wolff-rearranged carboxylic acids in excellent yields. |
Databáze: | OpenAIRE |
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