(RS)-α-methyl-8-phenyl-1,4-dioxaspiro[4.5]decane-8-methanol 、
3,5-双三氟甲基苄基溴 在
sodium hydride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 3.5h,
以55%的产率得到(RS)-1-[(α-methyl-8-phenyl-1,4-dioxaspiro[4.5]decane-8-methoxy)methyl]-3,5-bis(trifluoromethyl)benzene