cis–trans Selectivity of Enzyme-Catalyzed Additions to 4-Substituted Cyclohexanones—Correlation with the Prelog/Ringold Model of Enzymatic Hydrogenation Enzyme-catalyzed reactions, Part 44. This work was supported by Degussa AG. We thank Dr. B. Miehlich for modeling calculations and Dr. A. Baro for assistance in preparing the manuscript. Part 43: F. Effenberger, S. Oßwald, Tetrahedron: Asymmetry 2001, 12, 2581–2587.