The “β-Fluorine Effect” in the Non-Metal Hydride Radical Deoxygenation of Fluorine-Containing Nucleoside Xanthates
作者:Maqbool A. Siddiqui、John S. Driscoll、Elie Abushanab、James A. Kelley、Joseph J. Barchi、Victor E. Marquez
DOI:10.1080/15257770008032993
日期:2000.1
An alternative method to conduct a Barton-McCombie deoxygenation in nucleosides Is described. The utility of the procedure is limited to structures with an electronegative substituent, particularly fluorine, in the beta-position relative to the radical center. The process is radical in nature and triggered by peroxides. The abstraction of hydrogen from the solvent is favorably influenced by the presence of a beta-fluorine.