反应条件
Multi-step reaction with 4 steps 1: 1.) 1 N KOH / 1.) dioxane, water, RT, 5 h, 2.) THF, HMPA, 24 h2: 73 percent / p-toluenesulfonic acid / CH2Cl2 / 3 h / -10 - 20 °C3: H2 / 10percent Pd/C / tetrahydrofuran / 4 h / 760 Torr / Ambient temperature4: benzenesulfonylchloride, pyridine / 0 °C
参考文献
Barbier, Pierre; Schneider, Fernand Journal of Organic Chemistry, 1988 , vol. 53, # 6 p. 1218 - 1221
