5,10-dihydro-silanthrene as a reagent for the Barton-McCombie reaction
作者:T. Gimisis、M. Ballestri、C. Ferreri、C. Chatgilialoglu、R. Boukherroub、G. Manuel
DOI:10.1016/0040-4039(95)00593-2
日期:1995.5
The deoxygenation of secondary alcohols via thionoesters with the use of 5,10-dihydro-silanthrene as the radical reducing agent has been studied in detail. The ability of hydrogen donation of this silane has been measured using the one-carbon ring expansion of 1-(2-oxocyclopentyl)ethyl radical as a timing device.
(Me3Si)(3)SiH was used as a successful reagent in a variety of radical-based transformations in water. The system comprising substrate, silane, and initiator (ACCN) mixed in aqueous medium at 100 degrees C worked well for both hydrophilic and hydrophobic substrates, with the only variation that an amphiphilic thiol was also needed in case of the water-soluble compounds.
Oba Makoto, Nishiyama Kozaburo, Tetrahedron, 50 (1994) N 34, S 10193-10200
作者:Oba Makoto, Nishiyama Kozaburo
DOI:——
日期:——
Oba Makoto, Nishiyama Kozaburo, J. Chem. Soc. Chem. Commun, (1994) N 14, S 1703-1704