Catalytic hydrogen transfer over magnesia, IXa. reduction of long chain aliphatic ketones by 2-propanol |
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Authors: | M Gliski |
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Institution: | (1) Faculty of Chemistry, Laboratory of Catalytic Synthesis, Warsaw University of Technology (Politechnika), Koszykowa 75, 00-662 Warsaw, Poland |
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Abstract: | A series of symmetrical long chain aliphatic ketones of general formula CH3−(CH2)n-CO-(CH2)2−CH3, where n=4,5,6,7 and 8, has been used as hydrogen acceptors from 2-propanol at 573–723 K in the presence of MgO catalyst
under flow conditions. The yeilds of the appropriate alcohols exceeded 50%. Above 623 K the consecutive dehydration of the
alcohols formed took place with moderate yields leading to internal alkenes. The direct one-step synthesis of C13 alkene from 7-tridecanone has been realized under catalytic transfer reduction (CTR) conditions with high yield (>90%) over
a MgO catalyst of enhanced acidity.
Part VIII: Appl. Catal. A.:General,150, 77 (1997) |
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Keywords: | Reduction of aliphatic ketones by 2-propanol secondary alcohols formation magnesia alkenes from ketones H3PO4/MgO catalyst |
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