- Air- and Microwave-Stable (C5H5)Ru Catalysts for Improved Regio- and Enantioselective Carroll Rearrangements
Samuel Constant, Simone Tortoioli, Jessica Müller, David Linder, Frédéric Buron, Jérôme Lacour
Angew. Chem. Int. Ed. 2007, 46, 8979-8982
[ VIP article. This study was highlighted in Synfacts. ]
Reduce, reuse, recycle: Zwitterionic adducts of pyridyl-containing hexacoordinate phosphorus anions and (C5H5)Ru moieties (see picture) are air-, moisture-, and microwave-stable catalysts that can be readily purified and in some instances recycled. Carroll rearrangements of allylic β-ketoesters performed with these species occur with improved regio- and enantioselectivity.
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