Hydrodehalogenation of organohalides by Et 3 SiH catalysed by group 4 metal complexes and B(C 6 F 5 ) 3

Hydrodehalogenation of organohalides by Et 3 SiH catalysed by group 4 metal complexes and B(C 6 F 5 ) 3

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...

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Veröffentlicht in:Dalton transactions : an international journal of inorganic chemistry 2020-03, Vol.49 (9), p.2771-2775
Hauptverfasser: Dunlop, David, Pinkas, Jiří, Horáček, Michal, Žilková, NaděŽda, Lamač, Martin
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container_issue 9
container_start_page 2771
container_title Dalton transactions : an international journal of inorganic chemistry
container_volume 49
creator Dunlop, David
Pinkas, Jiří
Horáček, Michal
Žilková, NaděŽda
Lamač, Martin
description 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.
doi_str_mv 10.1039/D0DT00360C
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title Hydrodehalogenation of organohalides by Et 3 SiH catalysed by group 4 metal complexes and B(C 6 F 5 ) 3
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