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Article

Ionic Liquid Catalyzed Per-O-Acetylation and Benzylidene Ring-Opening Reaction

1
Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
2
Department of Chemistry, Shu Guang Girl’s Senior High School, Hsinchu 300, Taiwan
3
Instrumentation Center, MOST, National Tsing Hua University, Hsinchu 30013, Taiwan
4
Department of Cosmetic Science and Institute of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(6), 642; https://doi.org/10.3390/catal10060642
Received: 30 April 2020 / Revised: 30 May 2020 / Accepted: 1 June 2020 / Published: 8 June 2020
(This article belongs to the Section Environmental Catalysis)
Tunable aryl imidazolium ionic liquids acting as Brønsted acid ionic liquids were found to be efficient catalysts for per-O-acetylation and reductive ring opening of benzylidene acetals. This method requires a truly catalytic amount of the least expensive available ionic liquids that are water-stable and reusable and also stable at room temperature. The reactions were obtained in one hour with good to excellent yields. These reactions can form C−O and C−H bonds with a high atom economy. Furthermore, the ionic liquid is an anomeric selective catalyst in per-O-acetylation and reductive ring opening of benzylidene acetals of sugar moieties. View Full-Text
Keywords: per-O-acetylation; ring-opening; ionic liquid; reuse; Brønsted-Lowry acid per-O-acetylation; ring-opening; ionic liquid; reuse; Brønsted-Lowry acid
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MDPI and ACS Style

Thul, M.; Wu, Y.-P.; Lin, Y.-J.; Du, S.-L.; Wu, H.-R.; Ho, W.-Y.; Luo, S.-Y. Ionic Liquid Catalyzed Per-O-Acetylation and Benzylidene Ring-Opening Reaction. Catalysts 2020, 10, 642. https://doi.org/10.3390/catal10060642

AMA Style

Thul M, Wu Y-P, Lin Y-J, Du S-L, Wu H-R, Ho W-Y, Luo S-Y. Ionic Liquid Catalyzed Per-O-Acetylation and Benzylidene Ring-Opening Reaction. Catalysts. 2020; 10(6):642. https://doi.org/10.3390/catal10060642

Chicago/Turabian Style

Thul, Mayur, Yao-Peng Wu, Yi-Jyun Lin, Shu-Lin Du, Hsin-Ru Wu, Wen-Yueh Ho, and Shun-Yuan Luo. 2020. "Ionic Liquid Catalyzed Per-O-Acetylation and Benzylidene Ring-Opening Reaction" Catalysts 10, no. 6: 642. https://doi.org/10.3390/catal10060642

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