Ruthenium vs. Osmium Complexes as Catalysts for Atom Transfer Radical Addition Reactions
作者:Mariano A. Fernández‐Zúmel、Gregor Kiefer、Katrin Thommes、Rosario Scopelliti、Kay Severin
DOI:10.1002/ejic.201000388
日期:2010.8
evaluated for atomtransferradicaladdition (ATRA) and cyclization (ATRC) reactions. The Os complex enabled these reactions to be performed with similar efficiency as that of the analogous Ru complex [Cp*RuCl2(PPh3)]. The olefin complex [Cp*OsBr(H2C=CHPh)(PPh3)] was obtained by reduction of [Cp*OsBr2(PPh3)] with Mg in the presence of an excess of styrene, whereas an analogous Ru complex was not observed