A5017734858- Asymmetric Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
- Chemical Synthesis and Reactions
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Chemical Synthesis and Analysis
- Oxidative Organic Chemistry Reactions
- Chemical synthesis and alkaloids
- Carbohydrate Chemistry and Synthesis
- Traditional and Medicinal Uses of Annonaceae
- Synthesis and Catalytic Reactions
- Cyclopropane Reaction Mechanisms
- Cancer therapeutics and mechanisms
- Sulfur-Based Synthesis Techniques
- Alkaloids: synthesis and pharmacology
- Multicomponent Synthesis of Heterocycles
- Inorganic and Organometallic Chemistry
- Synthesis and Biological Evaluation
- Microbial Natural Products and Biosynthesis
- Bioactive Compounds and Antitumor Agents
- Chemical Reaction Mechanisms
- Synthesis of heterocyclic compounds
- Marine Sponges and Natural Products
- Biotin and Related Studies
- Advanced Synthetic Organic Chemistry
National Chemical Laboratory
2015-2024
Academy of Scientific and Innovative Research
2018-2023
Marymount University
2022
Council of Scientific and Industrial Research
2014-2016
Savitribai Phule Pune University
2007-2016
Shivaji University
1996
University of Minnesota
1988-1992
The biotin−avidin reaction is well studied and often used as a prototypical interaction in the development of immunoassays. In this paper, on surface colloidal silver gold particles first step sol-based assay. More specifically, were biotinylated by self-assembly biotin disulfide molecule, surface-modified with avidin molecules was followed using optical absorption spectroscopy. specific avidin, tetrameric protein, leads to cross-linking ("flocculation") consequent growth long wavelength...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAcrolein acetals as allyl cation precursors in the ionic Diels-Alder reactionPaul G. Gassman, Daniel A. Singleton, James J. Wilwerding, and Subhash P. ChavanCite this: Am. Chem. Soc. 1987, 109, 7, 2182–2184Publication Date (Print):April 1, 1987Publication History Published online1 May 2002Published inissue 1 April 1987https://pubs.acs.org/doi/10.1021/ja00241a047https://doi.org/10.1021/ja00241a047research-articleACS PublicationsRequest reuse...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe low-temperature, ionic Diels-Alder addition of vinyl ortho esters to 1,3-dienesPaul G. Gassman and Subhash P. ChavanCite this: J. Org. Chem. 1988, 53, 10, 2392–2394Publication Date (Print):May 1, 1988Publication History Published online1 May 2002Published inissue 1 1988https://pubs.acs.org/doi/10.1021/jo00245a058https://doi.org/10.1021/jo00245a058research-articleACS PublicationsRequest reuse permissionsArticle Views878Altmetric-Citations24LEARN...
In this work we report the unique electrocatalytic role of benzoic acid protected silver nanoclusters (Ag(n), mean core diameter 2.5 nm) in Wolff rearrangement (Scheme 1) alpha-diazoketones. More specifically, presence a Ag(n) (0)/Ag(n) (+) redox couple facilitates nonclassical electron-transfer process, involving chemical reaction(s) interposed between two steps occurring opposite directions. Consequently, net electron transfer mediator (Ag(n)) and alpha-diazoketone is zero. In-situ...
Concise total syntheses of (<italic>R</italic>)-pipecolic acid, (2<italic>R</italic>,3<italic>R</italic>)-3-hydroxypipecolic acid and formal β-(+)-conhydrine, (−)-lentiginosine, (−)-swainsonine -1,2-di-<italic>epi</italic>-swainsonine have been accomplished starting from a common chiral synthon.
Zeolite H-FER catalyzes the acetylation of alcohols, phenols and thiols using acetic anhydride under solventless conditions in excellent yields. The catalyst can be reused without any loss activity.
alpha-Diazoketones possess high electric dipole moments, as a consequence of the dipolar nature diazocarbonyl functional group. The vectorial analysis, theoretical calculations (PM3 and ab initio), literature reports based on experimental reveal higher moment for Z-configuration diazo Microwave irradiation alpha-diazoketone (1a-m) (Figure 1) promotes Wolff rearrangement specifically via in excellent yields. dielectric properties solvent govern course microwave rearrangement. 3-Diazocamphor...
The first enantiospecific synthesis of (-)-parvifoline, employing ring-closing metathesis as the key step, and (-)-curcuquinone from naturally occurring (R)-(+)-citronellal is described.
Abstract A facile one-to-one transesterification of ketoesters by Amberlyst-15 is described. ACKNOWLEDGMENTS Y.T.S.R., S.R. thank CSIR for the award fellowship. Funding from under Young Scientist Award (YSA) also gratefully acknowledged.
Abstract Aromatization of 4-substituted 1,4-dihydro-2,6-dimethyl-3,5-pyridine dicarboxylate using aqueous tert.-butylhydroperoxide in 74–87% yield has been achieved.
Abstract An efficient Co(II) catalyzed auto oxidation of 1,4-dihydropyridines to pyridines in good excellent yield is described.