2,2,6,6-tetramethyl-1-(1-phenyl-hex-5-enyloxy)-piperidin-4-ol 在
camphor-10-sulfonic acid 作用下,
以
叔丁醇 为溶剂,
反应 14.0h,
生成 2,2,6,6-Tetramethyl-1-(3-phenyl-cyclohexyloxy)-piperidin-4-ol 、 2,2,6,6-tetramethyl-1-(cis-2-phenyl-cyclopentylmethoxy)-piperidin-4-ol 、 2,2,6,6-tetramethyl-1-(trans-2-phenyl-cyclopentylmethoxy)-piperidin-4-ol