Hydrodehalogenation of organohalides by Et3SiH catalysed by group 4 metal complexes and B(C6F5)3

被引：11

作者：

Dunlop, David ^{[1
]}

Pinkas, Jiri ^{[1
]}

Horacek, Michal ^{[1
]}

Zilkova, Nadezda ^{[1
]}

Lamac, Martin ^{[1
]}

机构：

[1] Czech Acad Sci, J Heyrovsky Inst Phys Chem, Vvi, Dolejskova 2155-3, Prague 18223 8, Czech Republic

来源：

DALTON TRANSACTIONS | 2020年 / 49卷 / 09期

关键词：

F BOND ACTIVATION; SI-H; HYDRODEFLUORINATION; TRIFLUOROTOLUENES; CHEMISTRY; CLEAVAGE;

D O I：

10.1039/d0dt00360c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Catalytic hydrodehalogenation (HDH) of aliphatic organohalides such as trifluorotoluenes by Et3SiH proceeds in the presence of readily available group 4 metal compounds: Cp ' 2MX2 (Cp ' = eta(5)-C5H5 or eta(5)-C5Me5; X = F, Cl, or Me; M = Ti, Zr, or Hf), CpTiCl3 and TiCl4 with a catalytic amount of B(C6F5)(3). The use of metallocenes in combination with the borane activator leads to a better selectivity of the reaction, i.e., suppression of Friedel-Crafts alkylations of arenes.

引用

页码：2771 / 2775

页数：5

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