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
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