1: 88 percent / odorless mineral spirits / 16 h / 140 °C 2: 1.) tetrabutylammonium hydrogen sulfate, 50percent NaOH, 3.) H2 / 3.) 5percent Pd/C / 1.) toluene, 35 deg C, 1 h; 20 deg C, 16 h, 2.) toluene, 20 deg C, 1 h, 3.) EtOH, 60 deg C, 55 psi, 16 h View Scheme