Hydrocinnamaldeyde production by Rh-catalysed regioselective hydroformylation of styrene

Identifier:  TFG:1709

Handle: https://hdl.handle.net/20.500.11797/TFG1709

Authors:  Miró Serra, Roger

Abstract:
Hydrocinnamaldehyde and hydrocinnamyl alcohol (a derivative produced by hydrogenation of hydrocinnamaldehyde) are interesting compounds for the industrial production of floral fragrances because of its powerful hyacinth aroma and sweet and floral odour, respectively. These compounds are currently produced by selective or full hydrogenation of cinnamaldehyde, although the regioselective Rh-catalysed hydroformylation of styrene has recently emerged as an interesting alternative for the preparation of hydrocinnamaldehyde. The work presented here deals with the design and preparation of diphosphite ligands for their application in the linear regioselective Rh-catalysed hydroformylation of styrene. The catalytic performance of the catalysts was affected by the structures of the diphosphite backbone and phosphite function (Scheme 1). Scheme