First Tandem-Type One-Pot Process Combining Asymmetric Organo- and Biocatalytic Reactions in Aqueous Media Exemplified for the Enantioselective and Diastereoselective Synthesis of 1,3-Diols

A suitable process window was identified for the combination of an asymmetric organocatalytic aldol reaction and subsequent biocatalytic reduction in aqueous medium, which thus enabled the enantio- and diastereoselective synthesis of 1,3-diols in a tandem-type, one-pot process. A key feature of this one-pot synthesis is the high 500 mM loading of the aldehyde substrate used as a starting material