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Your search keyword '"Kesavan Venkitasamy"' showing total 14 results
Start Over Author "Kesavan Venkitasamy" Topic diastereoselective syntheses, enantioselective syntheses (incl. cis/trans-isomerism)
14 results on '"Kesavan Venkitasamy"'

1. ChemInform Abstract: Enantioselective Synthesis of Dihydrospiro[indoline-3,4′-pyrano[2,3-c]pyrazole] Derivatives via Michael/Hemiketalization Reaction.

Author

Kumarswamyreddy, Nandarapu and Kesavan, Venkitasamy

Subjects
*INDOLINE, *HETEROCYCLIC compounds synthesis, *PYRAZOLE derivatives, *CHEMICAL reactions, *THIOUREA, *LIGANDS (Chemistry)
Abstract

The new proline-derived squaramide organocatalyst is shown to exhibit higher efficiency than known thiourea and squaramide ligands. [ABSTRACT FROM AUTHOR]

Published
2016
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3. ChemInform Abstract: Organocatalytic Asymmetric Decarboxylative Cyanomethylation of Isatins Using L-Proline Derived Bifunctional Thiourea.

Author

Pratap Reddy Gajulapalli, V., Vinayagam, Poopathy, and Kesavan, Venkitasamy

Subjects
*ORGANOCATALYSIS, *ASYMMETRY (Chemistry), *DECARBOXYLATION, *METHYLATION, *ISATIN, *PROLINE, *THIOUREA, *BIFUNCTIONAL catalysis
Abstract

The natural product CPC-1 (VI) is prepared by the presented approach as key step. [ABSTRACT FROM AUTHOR]

Published
2014
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4. ChemInform Abstract: Enantioselective Fluorination of β-Ketoesters Using Tartrate Derived Bidentate Bioxazoline-Cu(II) Complexes.

Author

Balaraman, Kaluvu, Vasanthan, Ravichandran, and Kesavan, Venkitasamy

Subjects
*ENANTIOSELECTIVE catalysis, *FLUORINATION, *HALOGENATION, *KETONIC acids, *OXAZOLINE, *COPPER compounds, *METAL complexes, *TARTARIC acid, *LIGANDS (Chemistry)
Abstract

Tartaric acid derived bidentate bisoxazoline ligands are applied as catalysts for the NFSI promoted enantioselective fluorination of β-keto esters (I). [ABSTRACT FROM AUTHOR]

Published
2014
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5. ChemInform Abstract: Investigation of the Enantioselective Synthesis of 2,3-Dihydroquinazolinones Using Sc(III)-inda-Pybox.

Author

Prakash, Muthuraj, Jayakumar, Samydurai, and Kesavan, Venkitasamy

Subjects
*CHEMICAL reactions, *CHEMISTRY charts, *PYRIMIDINE derivatives, *ENANTIOSELECTIVE catalysis
Abstract

A chart is presented related to chemical reaction of fused pyrimidine derivatives which depicts enantioselective synthesis of 2,3-dihydroquinazolinones using Sc(III)-inda-pybox.

Published
2014
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9. ChemInform Abstract: Asymmetric Organocatalytic Assembly of Oxindoles Fused with Spiro-3,4-dihydropyrans with Three Contiguous Stereocenters Consisting of Vicinal Quaternary Centers.

Author

Vishwanath, Manjunatha, Vinayagam, Poopathy, Gajulapalli, V Pratap Reddy, and Kesavan, Venkitasamy

Subjects
*OXINDOLES, *DIELS-Alder reaction, *ORGANOCATALYSIS
Abstract

An organocatalytic, inverse-electron demand hetero-Diels-Alder reaction of isatylidene β,γ-unsaturated α-ketoesters with cyclic β-oxoaldehydes is developed. [ABSTRACT FROM AUTHOR]

Published
2016
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10. ChemInform Abstract: Organocatalytic Enantioselective Assembly of Spirooxindole-naphthopyrans Through Tandem Friedel-Crafts Type/Hemiketalization.

Author

Muthusamy, Subramaniam, Prakash, Muthuraj, Ramakrishnan, Chandrasekaran, Gromiha, M. Michael, and Kesavan, Venkitasamy

Subjects
*ORGANOCATALYSIS, *OXINDOLES, *ENANTIOSELECTIVE catalysis, *FRIEDEL-Crafts reaction, *NAPHTHOL derivatives
Abstract

starting from various oxindole α-ketoester and 2-naphthol [ABSTRACT FROM AUTHOR]

Published
2016
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11. ChemInform Abstract: Organocatalytic Construction of Spirooxindole Naphthoquinones Through Michael/Hemiketalization Using-Proline Derived Bifunctional Thiourea.

Author

Gajulapalli, V. Pratap Reddy, Lokesh, Kanduru, Vishwanath, Manjunatha, and Kesavan, Venkitasamy

Subjects
*BIFUNCTIONAL catalysis, *THIOUREA
Abstract

The article presents chemical equations related to the article "Organocatalytic Construction of Spirooxindole Naphthoquinones Through Michael/Hemiketalization Using-Proline Derived Bifunctional Thiourea" by V. Pratap Reddy Gajulapalli and others, published in the "RSC Advance" in 2016.

Published
2016
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13. ChemInform Abstract: Enantioselective Synthesis of Spirooxindole α-exo-Methylene-γ-butyrolactones from 3-OBoc-Oxindoles.

Author

Jayakumar, Samydurai, Muthusamy, Subramaniam, Prakash, Muthuraj, and Kesavan, Venkitasamy

Subjects
*BUTYROLACTONES, *RING formation (Chemistry), *OXINDOLES
Abstract

The article presents chemical equations related to the article "Enantioselective Synthesis of Spirooxindole α -exo-Methylene-γ -butyrolactones from 3-OBoc-Oxindoles" by S. Jayakumar and others, published in the periodical "European Journal of Organic Chemistry" in 2014.

Published
2015
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14. ChemInform Abstract: Highly Enantioselective Alkylation of Allyl Acetates Using Tartrate-Derived Bioxazoline Ligands.

Author

Jayakumar, Samydurai, Prakash, Muthuraj, Balaraman, Kaluvu, and Kesavan, Venkitasamy

Subjects
*OXAZOLINE derivatives, *ENANTIOSELECTIVE catalysis, *ALKYLATION, *ALLYL compounds, *ACETATE derivatives, *LIGANDS (Chemistry)
Abstract

The bisoxazoline (BOX) is found to be an efficient ligand in Pd-catalyzed asymmetric allylic alkylation. [ABSTRACT FROM AUTHOR]

Published
2014
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