Rate and Stereoselectivity Changes During Hydrogenation of n-Heterocycles |
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| Authors: | Viktor Háda Antal Tungler and László Szepesy |
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| Institution: | (1) Department of Chemical Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary |
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| Abstract: | High diastereoselectivities were obtained in the heterogeneous catalytic hydrogenation of chiral pyrrole and pyridine derivatives with complete conversion, in non-acidic medium. The products of the hydrogenations, secondary and tertiary amines act as catalyst modifiers, increasing the d.e. values in the last period of the reactions. |
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| Keywords: | Diastereoselective hydrogenation catalyst modifier |
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