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Solventless Oxidative Coupling of Amines to Imines by Using Transition‐Metal‐Free Metal–Organic Frameworks
Author(s) -
Qiu Xuan,
Len Christophe,
Luque Rafael,
Li Yingwei
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201301340
Subject(s) - oxidative coupling of methane , catalysis , chemistry , transition metal , amine gas treating , combinatorial chemistry , oxidative phosphorylation , organic synthesis , oxidative addition , organic chemistry , photochemistry , biochemistry
A highly efficient, simple, and versatile transition‐metal‐free metal–organic framework catalytic system is proposed for the oxidative coupling of amines to imines. The catalytic protocol features high activities and selectivities to target products; compatibility with a variety of substrates, including aliphatic amines and secondary amines; and the possibility to efficiently and selectively promote amine cross‐coupling reactions. A high stability and recyclability of the catalyst is also observed under the investigated conditions. Insights into the reaction mechanism indicate the formation of a superoxide species able to efficiently promote oxidative couplings.