Treatment of N-but-2-enylpiperidine with acyl halides in the presence of K2CO3 afforded the corresponding Claisen products with high diastereoselectivity depending on the E or Z but-2-enyl geometry.
将N-but-2-enylpiperidine与
酰卤在K2CO3存在下反应,得到相应的Claisen产物,具有较高的二叠体选择性,取决于E或Z型but-2-enyl几何构型。