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0013500960
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Analysis by chiral HPLC verified that the crystal was racemic, while the mother liquor was optically pure (see Supporting Information). For an example of a "racemic crystal" formed by crystallization of an optically enriched compound, see: A. Mishnev, I. Iovel, J. Popelis, I. Vosekalna, E. Lukevics, J. Organomet. Chem. 2000, 608, 1.
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45
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0041936169
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note
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All calculations were performed with Spartan'02, Wavefunction Inc., Irvine, CA, 2002; see Supporting Information.
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46
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0042937856
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CCDC-206033 (8) and -206034 (25) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/retrieving.html (or from the Cambridge Crystallographic Data Centre, 12, Union Road, Cambridge CB21EZ, UK; fax: (+44)1223-336-033; or deposit@ccdc.cam.ac.uk).
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Note added in proof: A racemic synthesis of 1 was recently reported: J. E. Moses, L. Commeiras, J. E. Baldwin, R. M. Adlington, Org. Lett. 2003, 5, 2987.
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