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DOI: 10.1055/s-0029-1218813
Multidimensional Screening and Methodology Development for Condensations Involving Complex 1,2-Diketones
Publikationsverlauf
Publikationsdatum:
11. Juni 2010 (online)

Abstract
Multidimensional reaction screening with complex cycloheptane-1,2-diones is described. The studies resulted in the discovery of regioselective Lewis acid mediated condensation reactions with substituted ureas, and a diastereoselective hydrogenation process that proceeds through an interesting isomerization of allylpalladium hydride.
Key words
reaction discovery - regioselectivity - condensation - diastereoselectivity - hydrogenations
- Supporting Information for this article is available online:
- Supporting Information (PDF)
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References
Crystallographic data for compound 9a have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication CCDC 771959. Copies can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [fax: +44(1223)336033 or e-mail: deposit@ccdc.cam.ac.uk].
17See the supporting information for representative characterization data for compounds 22a, 22b, 23a, 41a, 41b, and 48, and X-ray crystal structure data for compound 9a. This information is available through the Internet at www.thieme-connect.com/ejournals/toc/synthesis.
21Conformational analysis (Macromodel 9.6) using OPLS 2005 force field, optimization (JAGUAR 7.5, 1998 ed.) and B3LYP, 6-31g**, Schrodinger, Inc.: Portland, OR, 2008.