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and earlier work of the Trost group
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Venice, Italy, June 28-July 2
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The Pd-catalyzed asymmetric alkylations of substrate 1 were already reported by us: S. Schleich, G. Helmchen, Abstracts of Posters PC 45, International Conference on Organic Synthesis ICOS 12, Venice, Italy, June 28-July 2, 1998.
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[9a] G. Knühl, P. Sennhenn, G. Helmchen, J. Chem. Soc., Chem. Commun. 1995, 1845-1846. -
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[9b] S. Kudis, G. Helmchen, Angew. Chem. 1998, 110, 3210-3212; Angew. Chem. Int. Ed. Engl. 1998, 37, 3047-3050.
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[9b] S. Kudis, G. Helmchen, Angew. Chem. 1998, 110, 3210-3212; Angew. Chem. Int. Ed. Engl. 1998, 37, 3047-3050.
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84988088747
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E. Ponnusamy, U. Fotadar, A. Spisni, D. Fiat, Synthesis 1986, 48-49.
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Ponnusamy, E.1
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27
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0025089677
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Compounds 5 and 6 have been prepared previously in enantiomerically pure form: W. Oppolzer, T. Birkinshaw, G. Bernardinelli, Tetrahedron Lett. 1990, 31 (48), 6995-6998.
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Akkerman, A.M.1
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For a synthesis of the racemic compound see: R. D. Allan, J. Fong, Aust. J. Chem. 1983, 36, 601-608.
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Allan, R.D.1
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35
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0344534516
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For a synthesis of the racemic compound see ref. [7a]
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For a synthesis of the racemic compound see ref. [7a]
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