C-H bond chlorination and bromination using water soluble nickel(<sc>ii</sc>) guanidine complexes

被引：0
|
作者：
Khatri, Jaipriya [1 ]
Mari, Vasanthapandiyan [1 ]
Sarkar, Aniruddha [2 ]
Karmodak, Naiwrit [1 ]
Dhar, Basab Bijayi [1 ]
机构：
[1] Shiv Nadar Inst Eminence, Sch Nat Sci, Dept Chem, Dadri 201314, UP, India
[2] Indian Inst Sci Educ & Res Kolkata, Dept Chem Sci, Mohanpur 741246, India
来源：
DALTON TRANSACTIONS | 2025年 / 54卷 / 02期
关键词：
HALOGENATION;
D O I：
10.1039/d4dt02783c
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Water-soluble nickel(ii)-guanidine-based complexes successfully catalyzed the C-H chlorination of a series of hydrocarbons in the presence of NaOCl and acetic acid in water-chloroform (7 : 3, biphasic condition) at room temperature. Majorly chlorinated products (TON similar to 680 for cyclohexane) were obtained. Furthermore, C-H bond bromination of cyclohexane, n-hexane, and toluene was also carried out using in situ generation of NaOBr. These putative formations of Ni(iii) species were characterized by electron paramagnetic resonance (EPR) spectroscopy, and the plausible mechanism for chlorination was confirmed by DFT calculations.
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页数：9
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