acid. Additionally, Bi(OTf) in [BMI]OTf showed slightly higher catalytic activity than under solvent-free conditions. The procedure
3
is simple and potentially applicable to industrial scale synthesis.
ACKNOWLEDGEMENTS
This research is funded by Vietnam National University, HoChiMinh City (VNU-HCM) under grant number C2016-18-21/HĐ-
KHCN. Ortho-hydroxyaryl ketones synthesis in ionic liquids and characterization were funded by HS-2014-18-01. We thank MSc.
Duy-Khiem Nguyen Chau (University of Minnesota Duluth, USA) and MSc. Mai Hoang Ngoc Do (IPH-HCM) for their help.
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