Heterobimetallic Bi−Rh Paddlewheel Carboxylates as Catalysts for Metal Carbenoid Transformations

Jørn Hansen†, Bo Li‡, Evgeny Dikarev‡, Jochen Autschbach§ and Huw M. L. Davies*†
† Department of Chemistry, Emory University, 440 Atwood Hall, 1515 Dickey Drive, Atlanta, Georgia 30322 ‡ Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222 § Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000 J. Org. Chem., 2009, 74 (17), pp 6564–6571

Combined Experimental and Computational Studies
This paper reports on work by Huw Davies and colleagues at Emory University in Atlanta, GA. During their work, Professor Davies and his colleagues evaluate the catalytic activity of heterobimetallic Bi-Rh carboxylate complexes in metal carbenoid chemistry and cyclopropanation reactions. metal carbenoid chemistry EmoryThey also compared the performance of the heterometallic BiRh(O2CCF3)3(O2CCH3) complex to its homometallic analogue Rh2(O2CCF3)3(O2CCH3) in terms of selectivity and reactivity.  The diazo reagent is reacted with styrene to form a cyclopropane product.  To read more, see the complete white paper on Metal Catalyzed Transformations Using In Situ Spectroscopy.  This white paper highlights examples from academia where in situ IR spectroscopy has been used as an enabling tool to uncover key parameters in each metal catalyzed transformation investigation.