Abstract
| - A bimetallic Ru(II)−ethylene complex has been identified as a potent catalyst precursor for the Kharasch reaction. CCl4 and CHCl3 can be added to olefins under very mild conditions with excellent yields.
- A bimetallic complex, in which a RuCl2(η2-C2H4)(PCy3) fragment is connected via three chlorobridges to a (η6-p-cymene)RuCl2 fragment, has beensynthesized and characterized by single-crystal X-raycrystallography. This complex was used to catalyze theatom transfer radical addition of CCl4 and CHCl3 toolefins at temperatures between 0 and 40 °C. Turnoverfrequencies of up to 1550 h-1 were observed, making thenew complex one of the most active catalysts for this typeof reaction described so far.
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