315246-07-2Relevant academic research and scientific papers
Crown ether complex cation ionic liquids (CECILs) as environmentally benign catalysts for three-component synthesis of 4,5-dihydropyrano[3,2-c]chromene and 4,5-dihydropyrano[4,3-b]pyran derivatives
Abaszadeh, Mehdi,Seifi, Mohammad
, p. 7715 - 7723 (2015)
Crown ether complex cation ionic liquids (CECILs) catalyze three-component reaction of aromatic aldehydes, malononitrile, and 4-hydroxycoumarin or 4-hydroxy-6-methylpyrone, in EtOH under reflux, for synthesis of 4,5-dihydropyrano[3,2-c]chromene and 4,5-di
Synthesis of a novel bifunctional oxyammonium-based ionic liquid: Application for the synthesis of pyrano[4,3-b]pyrans and tetrahydrobenzo[b]pyrans
Zarei, Azra,Yarie, Meysam,Zolfigol, Mohammad Ali,Niknam, Khodabakhsh
, p. 1120 - 1131 (2019/12/24)
In the present investigation, a novel bifunctional oxyammonium-based ionic liquid, namely, 2,2′-(ethane-1,2-diylbis[oxy])bis(ethan-1-aminium)-2,2,2-trifluoroacetate, was designed and synthesized. The structure of the titled ionic liquid was characterized
A green catalytic preparation pyrano [4, 3 - b] pyran derivatives
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Paragraph 0032; 0033, (2017/08/26)
The invention discloses a green catalytic preparation method of a pyrano[4,3-b]pyran derivative and belongs to the technical field of ionic liquid catalysis. In the preparation reaction, the molar ratio of aromatic aldehyde, 4-hydroxy-6-methyl-2-pyrone an
Preparation and characterization of nano-CaO based on eggshell waste: Novel and green catalytic approach to highly efficient synthesis of pyrano[4,3-b]pyrans
Mosaddegh, Elaheh,Hassankhani, Asadollah
, p. 351 - 356 (2014/04/03)
A general and efficient catalytic system for Pd/C-catalyzed ligand-free aerobic Suzuki cross-coupling reactions was developed. The reaction tolerated a wide range of aryl bromides with a hydrophilic group or a hydrophobic group without any additives in wa
