1.1: boron trifluoride diethyl etherate; mercury(II) oxide / tetrahydrofuran; water / 0 - 20 °C / Inert atmosphere 2.1: Pseudomonas stutzeri lipase / tetrahydrofuran / 50 °C / Inert atmosphere 2.2: 24 h / 50 °C / Inert atmosphere View Scheme

boron trifluoride diethyl etherate; mercury(II) oxide in tetrahydrofuran; water T=0 - 20°C; Inert atmosphere;