Hydrogen/Deuterium-Exchange Reactions of Methane with Aromatics and Cyclohexane Catalyzed by a Nanoscopic Aluminum Chlorofluoride
作者:Beatriz Calvo、Thomas Braun、Erhard Kemnitz
DOI:10.1002/cctc.201701327
日期:2018.1.23
H/D‐exchange reactions between methane and deuterated solvents such as [D6]benzene and [D12]cyclohexane were heterogeneously catalyzed by nanoscopic aluminum chlorofluoride (ACF=AlClxF3−x, x≈0.05–0.3) under very mild conditions. 13C NMR spectroscopy experiments at labeled methane revealed the formation of all isotopologues. AlCl3, AlBr3, HS‐AlF3, γ‐Al2O3, and γ‐Al2O3 preheated at 700 °C did not show
甲烷和氘代溶剂(例如[D 6 ]苯和[D 12 ]环己烷)之间的H / D交换反应在非常温和的条件下被纳米级氯氟化铝(ACF = AlCl x F 3− x,x ≈0.05–0.3)非均相催化条件。在标记的甲烷上进行的13 C NMR光谱实验表明,所有同位素均聚物的形成。在700°C下预热的AlCl 3,AlBr 3,HS‐AlF 3,γ‐Al 2 O 3和γ‐Al 2 O 3没有显示出甲烷或[D 6]苯。从机理上讲,建议在ACF表面进行甲烷的亲电活化。