Enantiotopic selective reduction of 1-(benzofuran-2-yl) ethanones 1a–d, 1-(benzofuran-2-yl)- 2-hydroxyethanones 4a–c and 2-acetoxy-1-(benzofuran-2-yl) ethanones 3a–c was performed by baker's yeast for preparation of optically active (benzofuran-2-yl) carbinols [( ...