1: 99.4 percent / H2 / 5percent Pd/C / tetrahydrofuran / 0.25 h / Ambient temperature 2: 60 percent / phosphorus oxychloride, Et3N, pyridine / CHCl3 / Ambient temperature 3: 61.8 percent / K2CO3 / methanol / 3 h / Ambient temperature View Scheme

1: 99.4 percent / H2 / 5percent Pd/C / tetrahydrofuran / 0.25 h / Ambient temperature 2: 60 percent / phosphorus oxychloride, Et3N, pyridine / CHCl3 / Ambient temperature View Scheme