1: H2 / 10percent Pd-C / acetic acid / 24 h / 2587.7 Torr / Ambient temperature 2: pyridine / 24 h / Ambient temperature 3: 85 percent / trimethylsilyl trifluoromethanesulfonate / 1,2-dichloro-ethane / 44 h / 50 °C 4: 32 percent / 1,2-dichloro-ethane / 24 h / Ambient temperature 5: 88 percent / H2 / Pd-C / methanol / 1 h / Ambient temperature 6: 2.) M NaOH, 3.) M LiOH / 1.) pyridine, 37 deg C, 24 h; 2.) water, room temp., 1 h View Scheme

With  tetrabutyl ammonium fluoride in  acetonitrile 72 h;  Heating;   

Multi-step reaction with 4 steps 1: H2 / 10percent Pd-C / acetic acid / 24 h / 2587.7 Torr / Ambient temperature2: pyridine / 24 h / Ambient temperature3: 85 percent / trimethylsilyl trifluoromethanesulfonate / 1,2-dichloro-ethane / 44 h / 50 °C4: 32 percent / 1,2-dichloro-ethane / 24 h / Ambient temperature  

Multi-step reaction with 5 steps 1: H2 / 10percent Pd-C / acetic acid / 24 h / 2587.7 Torr / Ambient temperature2: pyridine / 24 h / Ambient temperature3: 85 percent / trimethylsilyl trifluoromethanesulfonate / 1,2-dichloro-ethane / 44 h / 50 °C4: 32 percent / 1,2-dichloro-ethane / 24 h / Ambient temperature5: 88 percent / H2 / Pd-C / methanol / 1 h / Ambient temperature