Enantioselective hydroformylation of styrene in the presence of platinum(II)–monophospha-crown ether complexes

Pongrácz, Péter and Szentjóbi, Hajnalka and Tóth, Tünde and Huszthy, Péter and Kollár, László (2017) Enantioselective hydroformylation of styrene in the presence of platinum(II)–monophospha-crown ether complexes. MOLECULAR CATALYSIS, 439. pp. 128-133. ISSN 2468-8231

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Abstract

Platinum complexes (trans-PtCl2L2) containing monophospha-crown ethers (L) were synthesised and used as catalyst precursors in asymmetric hydroformylation of styrene. Chemoselectivities of up to 90% toward aldehydes were obtained. The branched aldehyde (2-phenylpropanal) was slightly favoured for the reaction and e.e-s of up to 52% were obtained. Similar selectivities and higher activities were obtained in the presence of rhodium–monophospha-crown ether catalysts formed in situ.

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