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- Publications
- Influence
Ruthenium-Catalyzed Urea Synthesis by N-H Activation of Amines.
- V. Krishnakumar, Basujit Chatterjee, C. Gunanathan
- Chemistry, Medicine
- Inorganic chemistry
- 30 May 2017
Activation of the N-H bond of amines by a ruthenium pincer complex operating via "amine-amide" metal-ligand cooperation is demonstrated. Catalytic formyl C-H activation of N,N-dimethylformamide (DMF)… Expand
Vibrational assignments of 2,6-di(p-methoxy phenyl)-3-methyl piperidone, 2,6-di(p-methyl phenyl)-3-methyl piperidone, 2,6-di(o-hydroxy phenyl)-3-methyl piperidone and 1-methyl-2,6(p-methoxy phenyl)…
- T. Chithambarathanu, V. Umayorubagan, V. Krishnakumar
- Chemistry
- 2002
The FTIR spectra of the title compounds were recorded in the region 400-4000 cm - 1 and the detailed vibrational assignments have been proposed based on the functional group frequency approach.
- 22
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Vibrational analysis of some pyrazole derivatives
- T. Chithambarathanu, V. Umayorubaghan, V. Krishnakumar
- Chemistry
- 1 November 2003
The compounds 1,3,5-triphenyl-4,5-dihydro pyrazole, 1,3-diphenyl-5(p-methoxy phenyl)-4,5-dihydro pyrazole and 1,3-diphenyl-5(p-methyl phenyl)-4,5-dihydro pyrazole were prepared. The FTIR and laser… Expand
- 25
- PDF
Nicotinic acid conjugates of nonsteroidal anti-inflammatory drugs (NSAID's) and their anti-inflammatory properties.
- Machhindra Gund, F. Khan, Amit Khanna, V. Krishnakumar
- Chemistry, Medicine
- European journal of pharmaceutical sciences…
- 13 May 2013
A series of nicotinic acid conjugates with non-steroidal anti-inflammatory drugs (NSAID's) have been effectively synthesized using TBTU in high yield and purity. All the synthesized conjugates were… Expand
Selective α-Deuteration of Amines and Amino Acids Using D2O.
- Basujit Chatterjee, V. Krishnakumar, C. Gunanathan
- Chemistry, Medicine
- Organic letters
- 2 November 2016
Monohydrido-bridged ruthenium complex [{(η6-p-cymene)RuCl}2(μ-H-μ-Cl)] catalyzes (catalyst load: 0.5-1 mol %) α-selective deuteration of primary and secondary amines, amino acids, and drug molecules… Expand
Ruthenium-Catalyzed Anti-Markovnikov Selective Hydroboration of Olefins
- S. Kisan, V. Krishnakumar, C. Gunanathan
- Chemistry
- 10 August 2017
Ruthenium-catalyzed selective hydroboration of styrenes and aliphatic olefins with pinacolborane (HBpin) is reported. This efficient transformation provided products with exclusive anti-Markovnikov… Expand
Thiourea-Mediated Regioselective Synthesis of Symmetrical and Unsymmetrical Diversified Thioethers
- P. Manivel, K. Prabakaran, V. Krishnakumar, F. Khan, T. Maiyalagan
- Chemistry
- 28 April 2014
An efficient and simple thiourea-mediated regioselective synthesis of symmetrical and unsymmetrical diversified thioethers is reported. The regioselective reaction avoids byproduct formation and… Expand
Ruthenium-Catalyzed Deoxygenative Hydroboration of Carboxylic Acids
- S. Kisan, V. Krishnakumar, C. Gunanathan
- Chemistry
- 26 April 2018
An efficient deoxygenative hydroboration of carboxylic acids to alkyl boronate esters under mild reaction condition is reported. Both aromatic and aliphatic carboxylic acids exhibited excellent… Expand
Green Chemical Approach: Low-Melting Mixture as a Green Solvent for Efficient Michael Addition of Homophthalimides with Chalcones
- V. Krishnakumar, Nanu Govindan Vindhya, B. K. Mandal, F. Khan
- Chemistry
- 20 June 2014
Employing Burkhard Konig’s l-(+)-tartaric acid-dimethyl urea (DMU) mixture as an efficient catalyst or as solvent for the Michael addition of various chalcones with N-arylhomophthalimides could… Expand
Vibrational and normal coordinate analysis of thymine hydrochloride
- V. Krishnakumar, M. Arivazhagan
- Chemistry
- 1 May 2003
The FTIR and laser Raman spectra of thymine hydrochloride were recorded in the region 4000-100 cm - 1 and the normal coordinate analysis has been carried out by assuming Cs point group symmetry. All… Expand
- 4
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