34941-69-0Relevant articles and documents
Synthesis and Properties of Hydroxyl-Containing Ionic Liquids
Krasovskiy,Chernikova,Glukhov,Kapustin,Koroteev,Kustov
, p. 143 - 145 (2018)
Hydroxyl-containing ionic liquids were synthesized by quaternization of 1,2-dimethyl-1H-imidazole, N-methylpyrrolidine, and pyridine with 2-chloroethanol or 6-chlorohexan-1-ol, followed by exchange of chloride ion for bis(trifluoromethanesulfonyl)azanide, and their properties were studied.
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Eastham,Darrent
, p. 585,589 (1951)
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Eastham
, p. 1936,1939, 1940 (1952)
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DABCO-catalyzed Knoevenagel condensation of aldehydes with ethyl cyanoacetate using hydroxy ionic liquid as a promoter
Meng, Dan,Qiao, Yongsheng,Wang, Xin,Wen, Wei,Zhao, Sanhu
, p. 30180 - 30185 (2018/09/11)
N-(2-Hydroxy-ethyl)-pyridinium chloride ([HyEtPy]Cl) was synthesized and explored as a novel promoter for 1,4-diazabicyclo [2.2.2] octane (DABCO)-catalyzed Knoevenagel condensation reactions, which showed better catalytic activity compared to other ionic liquid (IL) that had no hydroxyl group attached to the IL scaffold. The effect of hydrogen bond formation between the hydroxyl group of [HyEtPy]Cl and the carbonyl group of aldehyde played an important role in the Knoevenagel condensation reaction. In the [HyEtPy]Cl-H2O-DABCO composite system, Knoevenagel condensation reactions proceeded smoothly and cleanly, and the corresponding Knoevenagel condensation products were obtained in good to excellent yields in all cases examined. This protocol provides a versatile solvent-catalyst system, which has notable advantages such as being eco-friendly, ease of work-up and convenient reuse of the ionic liquid.
Cl-H2O: An efficient and versatile solvent system for the DABCO-catalyzed Morita-Baylis-Hillman reaction
Zhao, Sanhu,He, Meiyan,Guo, Zhaonan,Zhou, Na,Wang, Dou,Li, Jinlong,Zhang, Liwei
, p. 32839 - 32845 (2015/04/27)
An efficient and versatile solvent-catalyst system, [HyEtPy]Cl-H2O-DABCO, has been developed and used in the Morita-Baylis-Hillman reaction. Under the mild reaction conditions, Morita-Baylis-Hillman proceeds very quickly and efficiently. This protocol has notable advantages such as eco-friendliness, ease of work-up and reuse of ionic liquid conveniently, which could help reduce disposal costs and contribute to the development of a new solvent-catalyst system for use in green and continuous chemical processes.