Baking Yeast Reduction

enantioselective, reduce beta-keto ester to beta-hydroxy ester.

brand : red star active dry baking yeast.

fermented yeast (sucrose or ethanol) reacts really slow and not efficient. and after the reaction, separation procedure is really time costing.

Use P.E. and water as the solvent and non-fermented yeast works better. shorter time and higher yield. work up is greatly improved. Acetone was used to extract the reaction mixture, works great.