1: With n-butyllithium; tri-isopropoxy-borane in toluene T=-60 - -10°C; 1 h; 2: With hydrogenchloride; water in toluene

1: With n-butyllithium in toluene T=-60 - -10°C; 1 h; Inert atmosphere; 2: With hydrogenchloride in water; toluene Inert atmosphere;