1: 80 percent / acetic acid / 1.) 42 h, 28 deg C, 2.) 5 h, 50 deg C 2: 78 percent / various solvent(s) / 3 h / 190 - 195 °C 3: 93 percent / H2 / 5 percent Pd/C / ethyl acetate / 1 h / 40 °C View Scheme