1: 93 percent / H2 / 10percent Pd-C / methanol / 4 h / 23 °C / 2585.7 Torr 2: aq. Na2CO3 / methanol / 4 h / 23 °C 3: ethyl acetate 4: 1) SOCl2 / 1) CHCl3, 45 deg C, 5 h, 2) CHCl3, reflux, 48 h 5: 80 percent / 1N HCl / methanol / 2 h / Heating View Scheme

1: 93 percent / H2 / 10percent Pd-C / methanol / 4 h / 23 °C / 2585.7 Torr 2: aq. Na2CO3 / methanol / 4 h / 23 °C 3: ethyl acetate 4: 1) SOCl2 / 1) CHCl3, 45 deg C, 5 h, 2) CHCl3, reflux, 48 h 5: 80 percent / 1N HCl / methanol / 2 h / Heating 6: 80 percent / aq. K2CO3 / methanol / 12 h / 23 °C View Scheme