Journal ArticleDOI
Halogen-Free Room-Temperature Brønsted Acidic Ionic Liquid [Hmim]+ HSO4 − as a Recyclable Green “Dual Reagent” Catalysis for the Synthesis of Triarylmethanes (TRAMs)
TLDR
The first report of the Baeyer synthesis with a halogen-free ionic liquid was given in this paper, where the halogen free Bronsted acid was used as both a catalyst and a solvent for the one-pot, two-component condensation of a variety of aromatic aldehydes with dimethyl or diethyl aniline.About:
This article is published in Synthetic Communications.The article was published on 2012-05-14. It has received 12 citations till now. The article focuses on the topics: Ionic liquid & Reagent.read more
Citations
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Journal ArticleDOI
Protic Ionic Liquids: Evolving Structure–Property Relationships and Expanding Applications
TL;DR: It is expected that the fundamental properties of PILs will continue to be explored, along with continued interest in many existing and new applications, such as in electrochemistry, organic and inorganic synthesis, and biological applications.
Journal ArticleDOI
Correlation of the Solubilizing Abilities of 1-Butyl-1-methyl-pyrrolidinium Tris (pentafluoroethyl)trifluorophosphate, 1-Butyl-1-methylpyrrolidinium Triflate and 1-Methoxyethyl-1-methylmorpholinium Tris (pentafluoroethyl)trifluorophosphate
Pamela Twu,Jared L. Anderson,Timothy W. Stephens,Anastasia Wilson,William E. Acree,Michael H. Abraham +5 more
TL;DR: Chromatographic retention data were measured for a wide range of organic solutes on 1-butyl-1-methylpyrolidinium tris(pentafluoroethyl)trifluorophosphate ([BMPyrr]+[FAP]−), 1- butyl- 1-methylpyrrolidINium triflate, ([BNR]-[Trif]−], and 1-methoxyethyl-1 -methylmorpholinium triss (PPL) tris[MeoeMMorp]−, stationary
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Copper(II) chloride assisted aryl exchange in arylmethanes: a simple and efficient route to triarylmethane derivatives
Jagatheeswaran Kothandapani,Asaithampi Ganesan,Pothiappan Vairaprakash,Subramaniapillai Selva Ganesan +3 more
TL;DR: In this paper, an easy access to triarylmethane derivatives is devised by treating an equimolar mixture of bis(indolyl) methane and leuco base with indole or N,N-dimethylaniline in the presence of CuCl2.
Journal ArticleDOI
Fabrication of Ionic‐Liquid‐Embedded ZnO Nanoparticles: Application of a Synergistic Catalytic Effect to Thiol‐Induced 2‐Pyridone Synthesis
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Synthesis of new mixed-bistriarylmethanes and novel 3,4-dihydropyrimidin-2(1H)one derivatives
TL;DR: In this paper, triarylmethanes bearing formyl groups (TRAM-CHOs) have been synthesized by the reaction of arenes with aromatic dialdehydes catalyzed by sulfuric acid immobilized on SiO2 under solvent-free grinding conditions.
References
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Journal ArticleDOI
Novel Brønsted Acidic Ionic Liquids and Their Use as Dual Solvent−Catalysts
Amanda C. Cole,Jessica L. Jensen,Ioanna Ntai,Kim Loan T. Tran,Kristin J. Weaver,David C. Forbes,James H. Davis +6 more
TL;DR: The new ionic liquids combine the low volatility and ease of separation from product normally associated with solid acid catalysts, with the higher activity and yields normally found using conventional liquid acids.
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A Brønsted acidic ionic liquid as an efficient and reusable catalyst system for esterification
TL;DR: In this article, a halogen-free Bronsted acidic ionic liquid, N-methyl-2-pyrrolidoniummethyl sulfonate ([NMP]+CH3SO3], was used for esterification of ethanol by acetic acid.
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Mannich reaction using acidic ionic liquids as catalysts and solvents
TL;DR: Several Bronsted acidic ionic liquids were synthesized and successfully used as solvents and catalysts of three-component Mannich reactions of aldehdyes, amines, and ketones at 25 °C.
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Catalytic application of room temperature ionic liquids: [bmim][MeSO4] as a recyclable catalyst for synthesis of bis(indolyl)methanes. Ion-fishing by MALDI-TOF-TOF MS and MS/MS studies to probe the proposed mechanistic model of catalysis
TL;DR: In this paper, the authors explored the catalytic application of room temperature ionic liquids (RTILs) to catalyse the reaction of indole with aldehydes to afford bis(indolyl)methanes.
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Brönsted acidic ionic liquid as an efficient catalyst for chemoselective synthesis of 1,1-diacetates under solvent-free conditions
TL;DR: In this article, a simple and efficient procedure for preparation of (1-H-3-methyl-imidazolium hydrogen sulfate) as a Bronsted acidic ionic liquid using 1-methylimidazole in the presence of concentrated sulfuric acid was introduced.