Enantioselective Synthesis of α-Hydroxy Ketones via Benzaldehyde Lyase-Catalyzed C−C Bond Formation Reaction

Ayhan S. Demir, Özge Şeşenoğlu, Elif Eren, Birsu Hosrik, Martina Pohl, Elena Janzen, Doris Kolter, Ralf Feldmann, Pascal Dünkelmann, Michael Müller

Advanced Synthesis & Catalysis · 2002 · 179 citations · 0 references

Concepts

Abstract

(R)-Benzoins and (R)-2-hydroxypropiophenone derivatives are formed on a preparative scale by benzaldehyde lyase (BAL)-catalyzed C−C bond formation from aromatic aldehydes and acetaldehyde in aqueous buffer/DMSO solution with remarkable ease in high chemical yield and high optical purity. The substrate range of this thiamin diphosphate-dependent enzyme was examined with respect to a broad applicability of this benzoin condensation-type reaction in stereoselective synthesis.