R
Rajender S. Varma
Researcher at Sam Houston State University
Publications - 91
Citations - 3081
Rajender S. Varma is an academic researcher from Sam Houston State University. The author has contributed to research in topics: Catalysis & Alcohol oxidation. The author has an hindex of 31, co-authored 91 publications receiving 2973 citations. Previous affiliations of Rajender S. Varma include Kurukshetra University & Houston Advanced Research Center.
Papers
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Clay catalyzed synthesis of imines and enamines under solvent-free conditions using microwave irradiation
TL;DR: In this article, primary and secondary amines with aldehydes and ketones were accelerated by microwaves under solvent-free conditions in the presence of montmorillonite K 10 clay to afford a high yield synthesis of imines and enamines.
Patent
Green synthesis of nanometals using plant extracts and use thereof
TL;DR: In this paper, the authors describe methods of making and using and compositions of metal nanoparticles formed by green chemistry synthetic techniques, which are used in removing contaminants from soil and groundwater and other contaminated sites.
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Rare-earth (RE) exchanged NaY zeolite promoted knoevenagel condensation
TL;DR: In this paper, rare-earth exchanged NaY zeolites are used to assist Knoevenagel condensation assisted by rare earth exchanged zeolite, where various functionalized arylaldehydes react readily with active methylene compounds to produce corresponding olefinic products.
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Solvent-free synthesis of heterocyclic compounds using microwaves
TL;DR: Microwave-enhanced solvent-free synthetic approach is described that features simplicity, manipulative ease of the operation and conservation of solvents as the main advantages as discussed by the authors, which has found application in facile organic functional group transformations, is applied to rapid assembly of heterocyclic compounds.
Journal ArticleDOI
Microwave-Accelerated Solvent-Free Synthesis of Thioketones, Thiolactones, Thioamides, Thionoesters, and Thioflavonoids
Rajender S. Varma,Dalip Kumar +1 more
TL;DR: An expeditious, solvent-free, and high yield conversion of ketones, flavones, isoflavones, lactones, amides, and esters to the corresponding thio analogues is described utilizing Lawesson's reagent in a process that circumvents the use of dry solvents and excess of the reagent.