Abstract
[RhCl(C8H14)2]2 together with the optically active amidines C6H5C(=NR)NHCH(CH3) (C6H5) I–V or their Li derivatives after activation with molecular hydrogen gives catalysts which at room temperature and 1.1 bar H2-pressure hydrogenate the prochiral substrates (Z)-α[N-acetylamino]-cinnamic acid, itaconic acid, α-methylcinnamic acid, α-methylcinnamic aldehyde, and α-methylcinnamic alcohol as well as cyclohexene, benzene and toluene. Good hydrogenation activity of the new catalysts is in contrast to low optical induction which only in the hydrogenation of α-methylcinnamic alcohol with 1.5 to 2% leads to values different from zero.
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3. Mitt.:H. Brunner undW. Pieronczyk, J. Chem. Res., im Druck.
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Brunner, H., Agrifoglio, G. Hydrierung prochiraler Olefine mit Rhodium-Komplexen von optisch aktiven Amidinen. Monatshefte für Chemie 111, 275–287 (1980). https://doi.org/10.1007/BF00938734
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DOI: https://doi.org/10.1007/BF00938734