1200124-03-3Relevant academic research and scientific papers
Salen-based hypercrosslinked polymer-supported Pd as an efficient and recyclable catalyst for C-H halogenation
Meng, Di,Bi, Jiajun,Dong, Yahao,Hao, Bo,Qin, Kaiwei,Li, Tao,Zhu, Dajian
supporting information, p. 2889 - 2892 (2020/03/18)
In this work, we report the first use of a salen-based hypercrosslinked polymer-supported Pd catalyst to carry out C-H halogenation. This catalyst can effectively catalyze C-H bromination and chlorination even better than its homogeneous counterpart Pd(OAc)2. It also showed excellent reusability without loss of catalytic activity for ten cycles. A broad substrate scope was explored and moderate to excellent yields were obtained.
Copper(II)-Promoted Mono-Selective ortho C-H Chlorination of Arenes by Using Trimethyl(trichloromethyl)silane
Zhu, Zhaobin,Xu, Changming,Wang, Yongchang,Zhao, Li
, p. 1122 - 1124 (2018/02/26)
The first example of a Cu-promoted ortho -chlorination of aryl C-H bonds by using TMSCCl 3 as chlorinating agent is reported. This reaction features a high selectivity toward monochlorination over dichlorination, compatibility with a variety of
Copper-catalyzed aromatic C-H bond halogenation with lithium halides under aerobic conditions
Mo, Song,Zhu, Yamin,Shen, Zengming
, p. 2756 - 2760 (2013/05/08)
A concise and practical Cu-catalyzed protocol for the preparation of chloro- and bromoarenes via C-H bond activation has been developed. The advantages of this strategy are the employment of cheap Cu(NO3) 2·3H2O, LiX and O2, and its compatibility with both electron-donating and electron-withdrawing substituents on aryl rings.
Palladium-catalyzed monoselective halogenation of C-H bonds: Efficient access to halogenated arylpyrimidines using calcium halides
Song, Bingrui,Zheng, Xiaojian,Mo, Jun,Xu, Bin
supporting information; experimental part, p. 329 - 335 (2010/04/28)
A wide variety of ortho-halogenated arylpyrimidines were prepared with high monoselectivity and functional-group tolerance by using calcium halides as crucial halogenating agents and cupric trifluoroacetate as oxidant in the presence of air.
