1: hydrogen / Lindar catalyst / hexane 2: pyridine / CH2Cl2 / 10 h / Ambient temperature 3: 2.) hydrogen / 1.) lipase-MY (Candida cylindracea); 2.) PtO2 / 1.) H2O; 2.) EtOH View Scheme

Oxonereg;; sodium 2-iodobenzenesulfonate in nitromethane T=110°C; 24 h;