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

0522640 - ÚFCH JH 2021 RIV GB eng J - Journal Article
Dunlop, David - Pinkas, Jiří - Horáček, Michal - Žilková, Naděžda - Lamač, Martin
Hydrodehalogenation of organohalides by Et3SiH catalysed by group 4 metal complexes and B(C6F5)3.
Dalton Transactions. Roč. 49, č. 9 (2020), s. 2771-2775. ISSN 1477-9226. E-ISSN 1477-9234
R&D Projects: GA ČR(CZ) GA17-13778S
Institutional support: RVO:61388955
Keywords : Aliphatic compounds * Hafnium compounds * Halogenation
OECD category: Physical chemistry
Impact factor: 4.390, year: 2020
Method of publishing: Limited access

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′ = η5-C5H5 or η5-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.

Permanent Link: http://hdl.handle.net/11104/0307103