Diastereoselective hydrogenation of folic acid esters with the Daniphos ligand

Wolfgang Braun,Beatrice Calmuschi-Cula,Albrecht Salzer,Viola Groehn

Journal of Organometallic Chemistry（2006）

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摘要

The “Daniphos” ligand was employed in the hydrogenation of folic acid dimethyl ester benzenesulfonate. Tetrahydrofolic acid dimethylester has been obtained with selectivities of up to 42% de, matching “the state of the art”. An X-ray structure of the most successful ligand is presented and discussed.

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关键词

Rhodium,Diphosphines,Planar chirality,Asymmetric hydrogenation

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