Bifunctional catalysts for regioselective hydrogenation and for hydrogenation of highly-substituted alkenes

…, P Palma-Ramirez, DJ Cole-Hamilton

Index: Preston, Sheila A.; Cupertino, Domenico C.; Palma-Ramirez, Pilar; Cole-Hamilton, David J. Journal of the Chemical Society, Chemical Communications, 1986 , # 12 p. 977 - 978

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Citation Number: 11

Abstract

[RhCl (PPh3) 2 (Ph2PO2CCHCMe2)] catalyses the hydrogenation of highly-substituted acrylic acids in the presence of base by a mechanism involving chelate stabilisation of alkene co-ordination and base-catalysed transesterification of the co-ordinated mixed anhydride; for hexa-2, 4-dienoic acid, selective hydrogenation of the αβ double bond occurs.