Chemoselective oxidation of organozinc reagents with oxygen
作者:Ingo Klement、Henning Lütjens、Paul Knochel
DOI:10.1016/s0040-4020(97)00603-0
日期:1997.7
Functionalized organozinc compounds prepared by hydrozincation, carbozincation or by boron-zincexchange can be directly oxidized in a selective manner to the corresponding functionalized alcohols or hydroperoxides depending on the reaction conditions.
catalytic amount of iron(II) triflate, TIPS-protected peroxides bearing primary, secondary, and tertiary C-H sites undergo chemoselective thioetherification of remote C-H bonds with diaryl disulfides. The reaction demonstrates a broad substrate scope and functional group tolerance without the use of any noble metal additives. Mechanistic experiments suggest that the reaction proceeds through 1,5-H atom