various cis-2,3-diacetoxylated piperidines. On the other hand, tetrahydroisoquinoline derivatives gave various α-C−H functionalized products in the presence of PhI(OAc)2. Nitroalkanes, dialkyl malonates, and β-keto ester are active participants in this coupling reaction. Meanwhile, α-amino nitriles can also be obtained by oxidative coupling of amines with malononitrile.
已经报道了PhI(OAc)2介导的与氮原子相邻的sp 3 C-H键的选择性功能化。当使用
哌啶衍
生物时,观察到与氮原子相邻的α和βsp 3 CH的直接
二乙酰氧基化,得到各种顺式-2,3-
二乙酰氧基
哌啶。另一方面,在PhI(OAc)2存在下,
四氢异喹啉衍
生物可得到各种α-CH官能化产物。硝基烷,
丙二酸二烷基酯和β-
酮酯是该偶联反应的积极参与者。同时,也可以通过胺与
丙二腈的氧化偶联获得α-
氨基腈。