Solvent-Free Synthesis
Solvent-Free Synthesis of Aryl Iodide Using Nano SiO2/HIO4 as a Reusable Acid Catalyst
... catalyst via grinding followed by a sandmeyer iodination by KI under solvent-free conditions at room temperature. The ensuing aryl diazonium salts supported on nano-SPIA were sufficiently stable to be kept ...
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Solvent Free Synthesis and Antimicrobial Potential of Some (2E) 4 methoxyphenyl Chalcones
... for synthesis of α, β-unsaturated carbonyl compounds, the best route is the Crossed-Aldol condensation of equimolar quantities carbonyl substrates with substituted benzaldehydes in base catalysts ...the ...
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Microwave assisted solvent free synthesis and fluorescence spectral characteristics of some monomethine cyanine dyes
... We have described rapid and highly efficient method for the synthesis of monomethine cyanine dyes with quinoline nucleus under solvent- free microwave irradiation. The electronic absorption and ...
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One-pot solvent-free synthesis of pyranonaphthoquinone-fused spirooxindoles catalyzed by SBA-IL
... In this context, although some noteworthy ad- vances have been achieved in recent years, the develop- ment of new and ecient methods utilizing a more ap- propriate and more accessible catalyst remains in high demand for ...
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Mild and Solvent-free Synthesis and Antibacterial Evaluation of Novel Sulfonamides Containing Hydroxyl Groups
... The selective nucleophilic substitution reaction of the aliphatic and aromatic amino alcohols and also aminophenols with p-toluenesulfonyl chloride, benzenesulfonyl chloride and 4-nitro benzenesulfonyl chloride was ...
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Mechanochemical Solvent Free Synthesis of Quaternary Semiconductor Cu Fe Sn S Nanocrystals
... acceptance (application of sulfur instead of selenium) and economic advantages (application of earth-abundant iron, zinc, and tin instead of scarce indium and gallium). However, in comparison with CIGS, their power ...
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Multicomponent Solvent-Free Synthesis, Antimicrobial and Antifungal Evaluation of Novel N-Amino Benzylthiolates
... evaporated to dryness under reduced pressure. The residue was recrystallized from ethanol containing various amounts of water to afford N-amino benzylthiolates 4a-j. The solvent-free condition 10 mmol of ...
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Microwave induced solvent free synthesis of some novel bioactive bis-ketimines
... A series of novel bis-ketimines were synthesized by the reaction of substituted hydroxypropiophenones and ethylene diamine by classical and solvent free microwave irradiation method. All the synthesized ...
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Solvent-free synthesis of stable oxaphosphaphenanthrene derivatives using multicomponent reaction of naphthols
... the design of novel MCRs has attracted great attention from research groups working in areas such as drug discovery, organic synthesis and materials science. As a result, the number of new MCRs has grown rapidly 2 ...
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Microwave assisted solvent free synthesis of 1,3-diphenylpropenones
... 1,3-Diphenylpropenones (chalcones) exhibit a broad spectrum of biological activities [1]. These are the main precursor in the biosynthesis of flavonoids [2] abundant in edible plants. They have been reported to show var- ...
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Development of solvent-free synthesis of hydrogen-bonded supramolecular polyurethanes
... temperature, solvent and reaction concentration has been performed to optimize the synthesis of carbamate, urethane and urea functional ...a solvent free method for this synthesis that ...
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Solvent free synthesis of p hydroxyacetophenone in a situ using eco friendly catalyst in Fries rearrangement
... Synthesis of Phenyl acetates(2a). A mixture of phenol (94g, 1mol) and dry pyridine (10ml) was placed in a 500ml beaker. It was kept in ice bath and acetic anhydride (127ml, 1.25mol) was added slowly with constant ...
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Catalyst and solvent-free synthesis of β-enaminone derivatives
... To achieve the scope of this high green protocol, variety of aryl amines and dicarbonyl compounds were subjected under solvent and catalyst-free condition. Armed in Table 1, dimedone and 2H- ...
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1 Solvent Free Synthesis and Safener Activity of
... Abstract : A series of novel sulfonylurea benzothiazoline were designed by splicing active groups 10.. and bioisosterism.[r] ...
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Solvent free Synthesis of 1,4-dihydropyrano[2,3-c]pyrazole Derivatives
... Thottumkara, M. S. Bowsher, T. K. Vinod, In Situ Generation of o-Iodoxybenzoic Acid (IBX) and the Catalytic Use of It in Oxidation Reactions in the Presence of Oxone as a Co-oxidant. Org. Lett., 7(14) (2005): 2933-36. ...
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One pot, solvent free synthesis of 2,5 disubstituted indolyl imidazoles by microwave irradiation
... 1450 Available online at www derpharmachemica com Scholars Research Library Der Pharma Chemica, 2012, 4 (1) 437 441 (http //derpharmachemica com/archive html) ISSN 0975 413X CODEN (USA) PCHHAX 437 www[.] ...
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Solvent free mechano chemical synthesis and characterisation of nanocrystalline transition metal hippurates
... A lot of work has been done on solvent free synthesis in metal- et al., 2006; Carson et al., 2009 Hippuric acid, N-benzoyl glycine, benzoyl amino acetic acid, one of the amino acids, present in the ...
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Polyaniline sulphate salt catalyzed synthesis of amidoalkyl naphthols under solvent free conditions
... [1] (a) For recent monograph, see J. Zhu, H. Bienayme (Eds), Multi-component Reactions, Wiley- VCH, Weinheim, 2005; (b) For special issue in MCRs, see Tetrahedron, 2005, 61, 1179; (c) D.J.Ramon. M.Yus, Angew. Chem., Int. ...
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RECENT APPLICATION OF SOLVENT FREE GREEN SYNTHESIS OF SCHIFF’S BASES AND IT’S DERIVATIVES: A REVIEW
... The Chemistry has wide scope for Carbon-Nitrogen bond forming reactions and upgrade from traditional towards modern synthetic and mutidisciplinary methods. The preferred interesting topic in chemistry that may benefit ...
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A Fast and Efficient Method for the Synthesis of 1,5-Benzodiazepine Derivatives Under Solvent-Free Conditions
... the synthesis of 1,5-benzodiazepine derivatives in the presence of silica sulfuric acid as a very inexpensive and recyclable solid acid catalyst which is found to catalyze efficiently the condensation of ...
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