Search Results - "Perumal, Paramasivan T"
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1
InCl3 and In(OTf)3 catalyzed reactions: synthesis of 3-acetyl indoles, bis-indolylmethane and indolylquinoline derivatives
Published in Tetrahedron (01-02-2002)Get full text
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2
Potassium Hydrogen Sulfate-Catalyzed Reactions of Indoles: A Mild, Expedient Synthesis of Bis-indolylmethanes
Published in Chemistry letters (01-03-2004)“…Biologically important bis-indolylmethanes and their derivatives were prepared in good yields by the electrophilic substitution of indole with aldehydes…”
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3
Synthesis and anti-microbial activity of pyrazolylbisindoles—Promising anti-fungal compounds
Published in Bioorganic & medicinal chemistry letters (15-12-2006)“…The synthesis and anti-fungal activity of pyrazolylbisindoles is reported. A series of pyrazolylbisindole derivatives have been synthesized by reacting…”
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4
InCl3 mediated one-pot multicomponent synthesis, anti-microbial, antioxidant and anticancer evaluation of 3-pyranyl indole derivatives
Published in Bioorganic & medicinal chemistry letters (01-09-2010)“…A simple and convenient method for the one-pot three-component synthesis of 3-pyranyl indoles has been accomplished by tandem Knoevenagel-Michael reaction of…”
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5
Synthesis of novel spirooxindole derivatives by one pot multicomponent reaction and their antimicrobial activity
Published in European journal of medicinal chemistry (01-05-2012)“…A series of novel spirooxindoles have been synthesized through 1,3-dipolar cycloaddition of an azomethine ylide generated from isatin and sarcosine or…”
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6
SnCl2·2H2O—An Alternative to Lewis Acidic Ionic Liquids
Published in Chemistry letters (01-06-2006)“…Inexpensive and commercially available SnCl2·2H2O has been shown to be an alternative to Lewis acidic ionic liquids by carrying out a variety of organic…”
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7
A Simple, Efficient and Solvent-Free Protocol for the Friedländer Synthesis of Quinolines by Using SnCl2·2H2O
Published in Chemistry letters (01-03-2005)“…A variety of polysubstituted quinolines have been synthesized under solvent free condition by using tin(II) chloride·dihydrate. The reaction proceeds smoothly…”
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8
Stoichiometry-controlled cycloaddition of azomethine ylide with dipolarophiles: chemoselective and regioselective synthesis of bis- and tris-spirooxindole derivatives
Published in Tetrahedron letters (16-04-2014)“…A new series of bis- and tris-spirooxindole derivatives have been synthesized by controlling the molar equivalent of in situ generated azomethine ylides in…”
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9
Synthesis and antiviral activity of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) against peste des petits ruminant virus (PPRV)
Published in Bioorganic & medicinal chemistry letters (01-08-2009)“…4,4′-(Arylmethylene)bis(1H-pyrazol-5-ols) were synthesized and evaluated for in vitro antiviral activity against peste des petits ruminant virus (PPRV)…”
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10
Facile synthesis of novel dispiroheterocylic derivatives through cycloaddition of azomethine ylides with acenaphthenone-2-ylidine ketones
Published in Tetrahedron letters (26-12-2012)“…The regioselective synthesis of a series of novel dispiropyrrolidines and dispiropyrrolizidines has been accomplished through intermolecular 1,3-dipolar…”
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11
A new protocol to synthesize 1,4-dihydropyridines by using 3,4,5-trifluorobenzeneboronic acid as a catalyst in ionic liquid: synthesis of novel 4-(3-carboxyl-1 H-pyrazol-4-yl)-1,4-dihydropyridines
Published in Tetrahedron (28-02-2005)“…3,4,5-Trifluorobenzeneboronic acid catalysed, ionic liquid mediated facile synthesis of 4-pyrazolyl 1,4-dihydropyridines at room temperature by the…”
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12
Effect of Single-Walled Carbon Nanotube Association upon 1H NMR Spectra of Representative Organonitrogen Compounds
Published in Journal of physical chemistry. C (14-05-2010)“…This report is important to achieving single-walled carbon nanotube (SWCNT) solvation, understanding adsorption of molecules on SWCNT surfaces, and SWCNT…”
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13
Diastereoselective synthesis of cis -fused pyrano and furanobenzopyrans catalyzed by indium trichloride or triphenyl phosphonium perchlorate
Published in Tetrahedron (23-12-2002)Get full text
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14
InCl3 mediated one-pot synthesis of indol-3-yl pyridine and 2,2'-bipyridine derivatives through multi-component reaction
Published in Tetrahedron (05-09-2009)Get full text
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15
Intramolecular Cyclization of Azides by Iminium Species. A Novel Method for the Construction of Nitrogen Heterocycles under Vilsmeier Conditions
Published in Journal of organic chemistry (16-10-1998)“…An unprecedented attack of the azide functionality by iminium species, generated in situ under Vilsmeier conditions, provided a novel route for the…”
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16
A Mild, Efficient, and Inexpensive Protocol for the Selective Deprotection of TBDMS Ethers Using KHSO4
Published in Chemistry letters (01-09-2004)“…Potassium hydrogensulfate in 30% aq. methanol deprotects a variety of tert-butyldimethylsilyl ethers at room temperature in excellent yields…”
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17
A facile strategy for the one pot multicomponent synthesis of spiro dihydropyridines from amines and activated alkynes
Published in Tetrahedron letters (30-11-2011)“…An efficient preparation of a series of spiro dihydropyridines via one pot four-component reactions of mono/di/tri-ketones, malononitrile, primary amines, and…”
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18
One-pot multicomponent synthesis and anti-microbial evaluation of 2′-(indol-3-yl)-2-oxospiro(indoline-3,4′-pyran) derivatives
Published in Bioorganic & medicinal chemistry letters (15-07-2010)“…A simple and efficient method for the one-pot three-component synthesis of new spirooxindoles in room temperature is described. The newly synthesized…”
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19
An efficient strategy for functionalized spirolactones and dispirodihydrofuranyl oxindoles using amines and activated alkynes
Published in Tetrahedron letters (27-06-2012)“…A facile strategy for the synthesis of functionalized spirolactones from isatin, primary amines, and activated alkynes through Huisgen dipolar additions are…”
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20
Regioselective synthesis and biological evaluation of bis(indolyl)methane derivatized 1,4-disubstituted 1,2,3-bistriazoles as anti-infective agents
Published in Bioorganic & medicinal chemistry letters (01-07-2009)“…The regioselective synthesis of 1,4-disubstituted 1,2,3-bistriazoles from a variety of N-propargyl bis(indolyl)methanes with sodium azide using CuI as the…”
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