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Activation of Chlorinated Methanes at the Surface of Nanoscopic Lewis Acidic Aluminum Fluorides
Author(s) -
Siwek Agnieszka K.,
Ahrens Mike,
Feist Michael,
Braun Thomas,
Kemnitz Erhard
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201601238
Subject(s) - chemistry , lewis acids and bases , catalysis , benzene , fluoride , aluminium , friedel–crafts reaction , inorganic chemistry , bond cleavage , cleavage (geology) , heterogeneous catalysis , photochemistry , organic chemistry , materials science , fracture (geology) , composite material
We report on the activation of chlorinated methanes by the heterogeneous catalysts aluminum chlorofluoride (ACF) and high‐surface aluminum fluoride (HS‐AlF 3 ) under moderate conditions. For comparison, chlorinated toluenes and 1,2‐dichloroethane were also tested. The strong Lewis acids are able to promote the cleavage of C−Cl bonds in the presence of Et 3 SiH. The C−Cl bonds were converted into C−H bonds through hydrodechlorination reactions or, in the presence of benzene, into C−C bonds through Friedel–Crafts type reactions. The catalytic reactions show high conversions.