| RESEARCH |
Meanwhile, assistant professor of chemistry Andrea Biffis and coworkers at the University of Padua, in Italy, have synthesized a chiral dirhodium(II) carboxylate catalyst bearing perfluoroalkyl chains that can be used homogeneously with a conventional organic solvent, dichloromethane, or in fluorous biphasic conditions (Org. Lett. 2005, 7, 1841). "The catalyst displays excellent chemo- and regioselectivity and good enantioselectivity in asymmetric cyclopropanation and C-H bond activation reactions," Biffis said. "It can be simply and thoroughly separated from the reaction mixture and is recyclable." |
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