1: 1,4-dihydroxy-1,2,3,4-tetrahydronaphthalene With (η5-C5Ph5)Ru(CO)2Cl; potassium tert-butylate in toluene T=50°C; 0.5 h; Inert atmosphere; 2: 2-acetyloxy-1-propene With sodium carbonate in toluene T=50°C; 96 h; Inert atmosphereEnzymatic reaction; optical yield given as percent ee;