www.cheminform.wiley-vch.de

Diastereoselective synthesesO 0031 DOI: 10.1002/chin.201014026

Allene Carboxylates as Dipolarophiles in Rh-Catalyzed Carbonyl Ylide Cycload-ditions. — Allene carboxylates (II) are successfully applied as dipolarophiles in car-bonyl ylide cycloaddition reaction. The reaction proceeds with high diastereofacial selectivity giving only two out of four possible diastereomers with a preference for the E,endo-isomer (III). — (ROUT, L.; HARNED*, A. M.; Chem. Eur. J. 15 (2009) 47, 12926-12928; Dep. Chem., Univ. Minn., Minneapolis, MN 55455, USA; Eng.) — Mischke

14- 026

ChemInform 2010, 41, issue 14 © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim