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424 results on '"VELLAISAMY, P."'

402. ChemInform Abstract: Synthesis of Novel β‐Lactam Fused Spiroisoxazolidine Chromanones and Tetralones as Potent Antimicrobial Agent for Human and Plant Pathogens.

Author

Arumugam, Natarajan, Raghunathan, Raghavachary, Shanmugaiah, Vellaisamy, and Mathivanan, Narayanasamy

Abstract

The synthesis of the novel β‐lactam fused spiroisoxazolidine tetralone and chromanone ring systems (III) is achieved by intermolecular 1,3‐dipolar cycloaddition reaction of nitrone (I) with the unusual dipolarophiles (II).

Published
2010
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404. ChemInform Abstract: Efficient Generation of Highly Functionalized Fused Oxazepine Frameworks Based on a CAN‐Catalyzed Four‐Component Tetrahydropyridine Synthesis/Ring‐Closing Metathesis Sequence.

Author

Sridharan, Vellaisamy, Maiti, Swarupananda, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2010
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405. ChemInform Abstract: Consecutive Reactions with Sulfoximines: A Direct Access to 2‐Sulfonimidoylylidene Tetrahydrofurans and 6‐Sulfonimidoylmethyl‐3,4‐dihydro‐2H‐pyrans.

Author

Virolleaud, Marie‐Alice, Sridharan, Vellaisamy, Mailhol, Damien, Bonne, Damien, Bressy, Cyril, Chouraqui, Gaelle, Commeiras, Laurent, Coquerel, Yoann, and Rodriguez, Jean

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2010
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406. ChemInform Abstract: Acid‐Free Synthesis of Carbazoles and Carbazolequinones by Intramolecular Pd‐Catalyzed, Microwave‐Assisted Oxidative Biaryl Coupling Reactions — Efficient Syntheses of Murrayafoline A, 2‐Methoxy‐3‐methylcarbazole, and Glycozolidine.

Author

Sridharan, Vellaisamy, Martin, M. Antonia, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2010
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407. ChemInform Abstract: Cerium(IV) Ammonium Nitrate Is an Excellent, General Catalyst for the Friedlaender and Friedlaender—Borsche Quinoline Syntheses: Very Efficient Access to the Antitumor Alkaloid Luotonin A.

Author

Sridharan, Vellaisamy, Ribelles, Pascual, Ramos, M. Teresa, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2010
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408. ChemInform Abstract: A Very Efficient Cerium(IV) Ammonium Nitrate Catalyzed, Four‐Component Synthesis of Tetrahydropyridines and Its Application in the Concise Generation of Functionalized Homoquinolizine Frameworks.

Author

Sridharan, Vellaisamy, Maiti, Swarupananda, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2009
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409. ChemInform Abstract: Convenient, Two‐Step Synthesis of 2‐Styrylquinolines: An Application of the CAN‐Catalyzed Vinylogous Type‐II Povarov Reaction.

Author

Sridharan, Vellaisamy, Avendano, Carmen, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2009
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410. ChemInform Abstract: Two‐Step Stereocontrolled Synthesis of Densely Functionalized Cyclic β‐Aminoesters Containing Four Stereocenters, Based on a New Cerium(IV) Ammonium Nitrate Catalyzed Sequential Three‐Component Reaction.

Author

Sridharan, Vellaisamy and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2009
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411. ChemInform Abstract: New Findings on the Cerium(IV) Ammonium Nitrate Catalyzed Povarov Reaction: Stereoselective Synthesis of 4‐Alkoxy‐2‐aryl‐1,2,3,4‐tetrahydroquinoline Derivatives.

Author

Sridharan, Vellaisamy, Avendano, Carmen, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2008
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412. ChemInform Abstract: Chemo‐, Stereo‐, and Regioselective Addition of α‐(2‐Methoxyaryl)‐N‐aryl Nitrones to Diarylidineacetone: Synthesis of Novel Isoxazolidines.

Author

Jayapradha, Sadaiyan Ramadass, Sridharan, Vellaisamy, Muthusubramanian, Shanmugam, and Polborn, Kurt

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Published
2008
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413. The First Aza Diels—Alder Reaction Involving an α,β‐Unsaturated Hydrazone as the Dienophile: Stereoselective Synthesis of C‐4 Functionalized 1,2,3,4‐Tetrahydroquinolines Containing a Quaternary Stereocenter.

Author

Sridharan, Vellaisamy, Perumal, Paramasivan T., Avendano, Carmen, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Published
2007
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414. A New Three‐Component Domino Synthesis of 1,4‐Dihydropyridines.

Author

Sridharan, Vellaisamy, Perumal, Paramasivan T., Avendano, Carmen, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Published
2007
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415. CAN‐Catalyzed Vinylogous Povarov Reactions: The First Three‐Component Synthesis of 2‐Functionalized Tetrahydroquinolines from Anilines, Cinnamaldehyde and Vinyl Ethers.

Author

Sridharan, Vellaisamy, Avendano, Carmen, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Published
2007
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418. CAN‐Catalyzed Three‐Component Reaction Between Anilines and Alkyl Vinyl Ethers: Stereoselective Synthesis of 2‐Methyl‐1,2,3,4‐tetrahydroquinolines and Studies on Their Aromatization.

Author

Sridharan, Vellaisamy, Avendano, Carmen, and Menendez, J. Carlos

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Published
2007
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423. Analysis of intersections of trajectories of systems of linear fractional differential equations.

Author

Deshpande AS, Daftardar-Gejji V, and Vellaisamy P

Abstract

This article deals with trajectorial intersections in systems of linear fractional differential equations. We propose a classification of intersections of trajectories into three classes: (a) trajectories intersecting at the same time (IST), (b) trajectories intersecting at different times (IDT), and (c) self-intersections of a trajectory. We prove a generalization of the separation theorem for the case of linear fractional systems. This result proves the existence of the IST. Based on the presence of the IST, systems are further classified into two types, Type I and Type II systems, which are analyzed further for the IDT. Self-intersections in a fractional trajectory can be regular such as constant solution or limit-cycle behavior, or they can be irregular such as cusps or nodes. We give necessary and sufficient conditions for a trajectory to be regular.

Published
2019
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424. Effect of dietary Spirulina on reduction of copper toxicity and improvement of growth, blood parameters and phosphatases activities in carp, Cirrhinus mrigala (Hamilton, 1822).

Author

James R, Sampath K, Nagarajan R, Vellaisamy P, and Manikandan MM

Subjects
Animal Feed, Animals, Hematologic Tests, Lethal Dose 50, Oxygen Consumption, Spirulina growth & development, Trace Elements toxicity, Acid Phosphatase metabolism, Alkaline Phosphatase metabolism, Carps blood, Carps growth & development, Copper toxicity, Dietary Supplements, Spirulina metabolism
Abstract

The effect of Spirulina supplementation on reduction of copper toxicity based on food utilization, phosphatases activities and selected haematological parameters was studied in a freshwater cultivable fish C. mrigala. Metal concentration in medium, body tissues and fecal matter was also analysed. Sublethal exposure of C. mrigala fed Spirulina-free diet significantly reduced the consumption and growth rates, phosphatases activities and haematological parameters. However, the above parameters enhanced in the copper exposed fish fed with Spirulina supplemented diets. A significant positive correlation was obtained for the relationship between supplementation of dietary Spirulina and copper defecation through feces. Among the doses of Spirulina supplementation, 6% addition has been considered optimum for C. mrigala since this dose produces maximum elimination of copper from the body and feces and better improvement on growth, phosphatases activities and haematological parameters.

Published
2009

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