申请人:White M. Christina
公开号:US20110015397A1
公开(公告)日:2011-01-20
A composition including a complex of a metal, a tetradentate ligand, at least one ancillary ligand, and a counterion may be used for selective sp
3
C—H bond oxidation. The tetradentate ligand may include a N-heterocyclic-N,N′-bis(pyridyl)-ethane-1,2-diamine group or a N,N′-bis(heterocyclic)-N,N′-bis(pyridyl)-ethane-1,2-diamine group. The composition can be used in combination with H
2
O
2
to effect highly selective oxidations of unactivated sp
3
C—H bonds over a broad range of substrates. The site of oxidation can be predicted, based on the electronic and/or steric environment of the C—H bond. In addition, the oxidation reaction does not require the presence of directing groups in the substrate.
一种包括金属复合物、四齿配体、至少一种辅助配体和对离子的组合物可用于选择性氧化sp3C—H键。四齿配体可能包括N-杂环-N,N′-双(吡啶基)-乙烷-1,2-二胺基团或N,N′-双(杂环)-N,N′-双(吡啶基)-乙烷-1,2-二胺基团。该组合物可与H2O2结合使用,对广泛范围的底物进行高度选择性的氧化未活化的sp3C—H键。可以根据C—H键的电子和/或立体环境预测氧化位置。此外,氧化反应不需要底物中存在导向基团。