Topospecific Self-Assembly of Mixed-Metal Molecular Hexagons with Diameters of 5.5 nm Using Chiral Control [J. Am. Chem. Soc. 2000, 122, 11527-11528]. Md. Messer Ali and Frederick M. MacDonnell* Page 11527. We have recently determined that the NMR spectra presented for compounds Ru6Pd6 (3), Os6Pd6 (4) and Ru3Os3Pd6 (5) were not obtained at the reported molar ratios of 1:1 for Ru6Pd6 and 1:1:2 for Ru3OsPd6. In each case, the Pd(II) ion was present in excess (3- to 4-fold molar excess). We have repeated these experiments using the appropriate stoichiometry (1 Pd per 1 Ru (or Os)) and find that some precipitate is always formed at this ratio. Due to these uncertainties, we are unable to confirm the ring structures of 3, 4, and 5 at this time. JA025123T 10.1021/ja025123t Published on Web 01/23/2003
Membraneless Vanadium Redox Fuel Cell Using Laminar Flow [J. Am. Chem. Soc. 2002, 124, 12930-12931]. Rosaria Ferrigno, Abraham D. Stroock, Thomas D. Clark, Michael Mayer and George M. Whitesides* Page 12930. Work by Kenis et al. also describes a fuel cell that is based on laminar flow and that thus does not need a membrane. This work is similar in concept to ours, although it used an O2/formic acid fuel system rather than an all-vanadium fuel system. [Choban, E. R.; Markoski, L. J.; Stoltzfus, J.; Moore, J. S. and Kenis, P. A. Power Sources Proc. 2002, 40, 317-320]. JA025124L 10.1021/ja025124l Published on Web 01/22/2003
Enantioselective Total Synthesis of (-)-Strychnine Using the Catalytic Asymmetric Michael Reaction and Tandem Cyclization [J. Am. Chem. Soc. 2002, 124, 14546-14547]. Takashi Ohshima, Youjun Xu, Ryo Takita, Satoshi Shimizu, Dafang Zhong, and Masakatsu Shibasaki* Page 14547, ref 4. The references to the previous synthesis of strychnine by Vollhardt et al. (Eichberg, M. J.; Dorta, R. L.; Lamottke, K.; Vollhardt, K. P. C. Org. Lett. 2000, 2, 2479. Eichberg, M. J.; Dorta, R. L.; Grotjahn, D. B.; Lamottke, K.; Schmidt, M.; Vollhardt, K. P. C. J. Am. Chem. Soc. 2001, 123, 9324) were missed. We regret this omission and wish to include them here. Page 14547, ref 4j. The name of the first author should be Bodwell, G. J. Page 14547, Scheme 1. The reagent for reaction step (p) should be trimethyl(2-nitrophenyl)stannane. JA034038Y 10.1021/ja034038y Published on Web 01/24/2003 2014
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J. AM. CHEM. SOC. 2003, 125, 2014
10.1021/ja025123t CCC: $25.00 © 2003 American Chemical Society
