title: Wolff rearrangement of alpha-diazoketones using in situ generated silver nanoclusters as electron mediators.
abstract: [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.
authors.affiliation: Division of Organic Chemistry Technology, Physical and Materials Chemistry Division, and Chemical Engineering & Process Development Division, National Chemical Laboratory, Pune-411008, India.
authors.forename: Surendra G
authors.initials: SG
authors.lastname: Sudrik
authors.forename: Jadab
authors.initials: J
authors.lastname: Sharma
authors.forename: Vilas B
authors.initials: VB
authors.lastname: Chavan
authors.forename: Nirmalya K
authors.initials: NK
authors.lastname: Chaki
authors.forename: Harikisan R
authors.initials: HR
authors.lastname: Sonawane
authors.forename: Kunjukrishna P
authors.initials: KP
authors.lastname: Vijayamohanan