Kuldeep Singh

ORCID: 0000-0002-2913-6644
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About
Contact & Profiles
Research Areas
  • Synthesis and biological activity
  • Agricultural Science and Fertilization
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Chemical Synthesis and Analysis
  • Multicomponent Synthesis of Heterocycles
  • Genetics and Plant Breeding
  • Synthetic Organic Chemistry Methods
  • Agricultural Economics and Practices
  • Rice Cultivation and Yield Improvement
  • Click Chemistry and Applications
  • Synthesis and Biological Evaluation
  • Synthesis and Catalytic Reactions
  • Agronomic Practices and Intercropping Systems
  • Synthesis and Characterization of Heterocyclic Compounds
  • Conducting polymers and applications
  • Crop Yield and Soil Fertility
  • Catalytic C–H Functionalization Methods
  • Supercapacitor Materials and Fabrication
  • Weed Control and Herbicide Applications
  • Leaf Properties and Growth Measurement
  • Wheat and Barley Genetics and Pathology
  • Nitrogen and Sulfur Effects on Brassica
  • Chemical Synthesis and Reactions
  • Genetic and Environmental Crop Studies

International Crops Research Institute for the Semi-Arid Tropics
2023-2025

Integral University
2022-2025

Kurukshetra University
2024

Guru Nanak Dev University
2019-2024

All India Institute of Medical Sciences Jodhpur
2021-2024

Central Salt and Marine Chemicals Research Institute
2024

REVA University
2023

Indira Gandhi National Open University
2023

Central Drug Research Institute
2021-2023

Academy of Scientific and Innovative Research
2021-2023

Staphylococcus aureus (S. aureus) is the most prevalent microorganism associated with mastitis in cattle, which harbours several virulence factors and antibiotic resistance genes. The present study aimed to characterize S. isolated from mastitic milk of cattle for (blaZ mecA), haemolysins (hla hlb) enterotoxins (sea, seb, sec, sed) A total 69 staphylococci were phenotypically characterized haemolytic properties on 5% sheep blood agar medium. Out isolates, 55 (79.71%) identified as by...

10.1371/journal.pone.0264762 article EN cc-by PLoS ONE 2022-05-03

Background: Stevia rebaudiana Bertoni leaves give similar satiety as that of sucrose. These have the additional benefit diminished calorie intake and cause a reduction in body weight. Bananas vital nutrients high potassium content. Tomato is rich source water-soluble antioxidants. Aim: leaves, banana fruits tomato are processed search an extract equipped with antioxidant activity mainly due to constituents. Methods: Ripe unripe fruit extracts were mixed various ratios screened for DPPH...

10.18311/jnr/2025/43941 article EN Journal of Natural Remedies 2025-01-31

The most stable is not necessarily the easy to obtain! Two new crystal forms of 120 year old compound sym-trinitrobenzene are reported. These elusive have been obtained by use an additive, trisindane, that can act as a mimic in crystallization experiment (see scheme). Supporting information for this article available on WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z52253_s.pdf or from author. Please note: publisher responsible content functionality any supporting supplied authors....

10.1002/anie.200352253 article EN Angewandte Chemie International Edition 2004-02-18

Background: Heterocyclic compounds play an essential role in biological sys-tems and occur widely nature. They are fundamental the development of pharma-ceuticals aimed at combating microbial infections other activities. Phar-macological evaluations have demonstrated their efficacy against diverse bacterial strains. This study investigates antimicrobial properties various benzimidazole hy-brids. The findings highlight significant influence substituting nitrogenous scaf-folds with heteroatoms...

10.2174/0122113525350256250107073402 article EN Anti-Infective Agents 2025-01-23

The Lewis acid catalyzed ring opening reaction of Donor–Acceptor (D–A) cyclopropanes with alkyl hydroperoxides is reported to furnish various peroxycarbonyls and 1,3-haloperoxygenated compounds in good excellent yields. This method adds another instance scarcely noncyclilizing 1,3-bisfunctionalization D–A two different functional groups relies on the dual role peroxide as nucleophile oxidant through an orchestrated sequence. products obtained, including α-heterosubstituted peroxy compounds,...

10.1021/acs.joc.8b02561 article EN The Journal of Organic Chemistry 2018-12-19

Lewis acid catalyzed highly efficient [3+2] annulation of spirocyclic Donor-Acceptor cyclopropanes (DACs) with exo-heterocyclic olefins is reported to furnish various biologically relevant dispiro-2,3-dioxopyrrolidine[cyclopentane]oxindole and dispiropyrazolone[cyclopentane]oxindole frameworks. This report highlights the use oxindole-activated spiro-DACs as potential synthons access complex dispirocarbocyclic oxindoles via ring-enlargement former, high yields diastereoselectivity.

10.1039/c9cc03393a article EN Chemical Communications 2019-01-01

A base-promoted, efficient [3 + 2] annulation between azaoxyallyl cations and thiocarbonyls is reported for flexible access to highly functionalized thiazolidin-4-one derivatives in good excellent yields. An intriguing feature of this method the metal or Lewis acid free late-stage entry distinct set functional groups at C2 thiazolidin-4-ones via substitution a latent amino group. Overall, approach constitutes general platform convenient medicinally important scaffold.

10.1021/acs.orglett.9b01933 article EN Organic Letters 2019-07-11

Abstract A triflamide‐tethered N‐heterocyclic carbene (NHC)‐bound Rh I dicarbonyl catalyst was highly effective for both intermolecular hydroalkoxylation and intramolecular heteroannulation reactions. The involvement of the amido nitrogen triflato oxygen atoms triflamide functionality alcohol activation 1,2‐hydrogen shift, respectively, proposed.

10.1002/cctc.201601667 article EN ChemCatChem 2017-01-25
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