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[Cp*Rh III ]/Ionic Liquid as a Highly Efficient and Recyclable Catalytic Medium for C−H Amidation
Author(s) -
Ma Qiang,
Yu Xinling,
Lai Ruizhi,
Lv Songyang,
Dai Weiyang,
Zhang Chen,
Wang Xiaolong,
Wang Qiantao,
Wu Yong
Publication year - 2018
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.201801287
Subject(s) - ionic liquid , rhodium , catalysis , chemistry , reusability , reaction conditions , organic chemistry , medicinal chemistry , software , computer science , programming language
A [Cp*Rh III ]‐catalyzed direct C−H amidation is carried out in ionic liquid. Both C(sp 2 )−H bonds of (hetero)arenes and alkenes and unactivated C(sp 3 )−H bonds can be easily amidated with high functional‐group tolerance and excellent yields under these conditions. Notably, using [Cp*Rh III ]/[BMIM]BF 4 (BMIM=1‐butyl‐3‐methylimidazolium) as the green and recyclable medium is environmentally benign, in light of characteristics such as the reusability of the expensive rhodium catalyst, avoidance of highly toxic organic solvents, and mild reaction conditions, as well as a short reaction time.