Generation and mesolytic dynamics of organoselenane and selenosilane radical ions: development of mechanistically interesting and synthetically useful chemistry.
PET oxidation of PhSe-SePh and R-CH2-Se-R' generates an electrophilic selenium and carbocationic species, respectively. Similarly, one-electron reductive activations of R-CH2-Se-R' and R3-Si-SePh produces alkyl and alkyl silyl radicals, respectively. The possible structure of the reactive electrophilic selenium species is discussed and the fragmentation of -C-Se]*+ is found to be nucleophilic-assisted. These mechanistically interesting studies have been shown to be useful in initiating various synthetic reactions.
Pandey
Ganesh
G
Division of Organic Chemistry (Synthesis), National Chemical Laboratory, Pune-411 008, India. pandey@ems.ncl.res.in
Gadre
Smita R
SR