A Green Protocol for Efficient Synthesis of 1,8-Dioxo-Octahydroxanthenes Using Ionic Liquid
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TLDR
A clean, simple, and efficient synthesis of 1,8-dioxo-octahydroxanthenes embryos using ionic liquid 1-butyl, 3-me-thylimidazolium======Perchlorate ([bmim] ClO4) has been developed.Abstract:
A clean, simple, efficient synthesis of 1,8-dioxo-octahydroxanthenes
derivatives using ionic liquid 1-butyl, 3-me- thylimidazolium
perchlorate ([bmim] ClO4) has been developed. The method
provides several advantages such as simple work up, environmental friendliness
and excellent yields in short reaction time. The ionic liquid [bmim] ClO4 used was recovered and reused for three times.read more
Citations
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Journal ArticleDOI
FSM-16/AEPC-SO3H: Synthesis, Characterization and Its Application for the Catalytic Preparation of 1,8-Dioxo-octahydroxanthene and Tetrahydrobenzo[b]pyran Derivatives
TL;DR: In this article, a new acidic mesoporous catalyst (FSM-16/AEPC-SO3H) was successfully synthesized and characterized by FT-IR, TGA, XRD, SEM, TEM, EDS and BET techniques.
Journal ArticleDOI
Eggshell/Fe3O4 nanocomposite: novel magnetic nanoparticles coated on porous ceramic eggshell waste as an efficient catalyst in the synthesis of 1,8-dioxo-octahydroxanthene
TL;DR: In this article, an eggshell/Fe3O4 nanocomposite was synthesized simply via an economic and novel method, using recycled eggshell biowaste as a starting material and an aqueous solution of FeSO4 as a coating agent without any additional alkali or a protective atmosphere.
Journal ArticleDOI
Nano titania-supported sulfonic acid (n-TSA) as an efficient, inexpensive, and reusable catalyst for one-pot synthesis of 1, 8-dioxo-octahydroxanthene and tetrahydrobenzo[b]pyran derivatives
TL;DR: With the help of nano titania-supported sulfonic acid (n-TSA), new 1,8-dioxo-octahydroxanthene and tetrahydrobenzo[b]pyran derivatives can be produced as mentioned in this paper.
Journal ArticleDOI
One-pot multi-component process for the synthesis of 4-azaphenanthrene-3,10-dione, 1,8-dioxo-octahydroxanthene and tetrahydrobenzo[b]pyran derivatives catalyzed by the deep eutectic solvent choline chloride-oxalic acid
TL;DR: In this article, an effective method based on choline chloride (ChCl)-oxalic acid (Ox) deep eutectic solvent was proposed for the synthesis of 4-azaphenanthrene-3,10-dione, 1,8-dioxo-octahydroxanthene and tetrahydrobenzo[b]pyran derivatives.
Journal ArticleDOI
Reaction of Dimedone and Benzaldehyde: A Discovery-Based Lab for Second-Semester Organic Chemistry
TL;DR: In this article, a simple two-step synthesis of 9-phenylxanthene-1,8-dione from dimedone and benzaldehyde was developed for second-semester undergraduate organic chemistry.
References
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Book
Ionic Liquids in Synthesis
Peter Wasserscheid,Tom Welton +1 more
TL;DR: The early years of Ionic liquid production were covered in this article, where a new generation of soluble supports for Supported Organic Synthesis (SPOS) was proposed. But this support was not applied to the task-specific Ionic liquids.
Journal ArticleDOI
Xanthene-dye-labelled phosphatidylethanolamines as probes of interfacial pH. Studies in phospholipid vesicles
C G Knight,T Stephens +1 more
TL;DR: Three lipophilic pH indicators made by covalently binding the xanthene dyes fluoresce in, eosin or dichlorofluorescein to the amino group of phosphatidylethanolamine were incorporated into phospholipid vesicles and the effect of pH on the fluorescence was characterized and it was concluded that these probes were promising candidates for the measurement of pH values at cell surfaces.
Journal ArticleDOI
The incorporation of various porphyrins into blood cells measured via flow cytometry, absorption and emission spectroscopy
TL;DR: Of the three sulfonated porphyrins investigated only TPPS4 was efficiently incorporated into leukocytes, and in the incubation solvent this dye was in monomeric and neutral form.
Journal ArticleDOI
A new route to substituted 3-methoxycarbonyldihydropyrans; enantioselective synthesis of (–)-methyl elenolate
TL;DR: In this article, a stereoselective chiral synthesis of ( −)-methyl elenolate has been achieved by employing a newly developed method for the construction of substituted 3-methoxycarbonyldihydropyrans based on a radical cyclisation reaction.
Journal ArticleDOI
Amberlyst-15: An efficient reusable heterogeneous catalyst for the synthesis of 1,8-dioxo-octahydroxanthenes and 1,8-dioxo-decahydroacridines
TL;DR: Amberlyst-15 has been found to be an efficient catalyst for the synthesis of 1,8-dioxo-decahydroacridines in excellent yields as mentioned in this paper.
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