Browsing Organic Chemistry (OC) by Title
Now showing items 108-127 of 222
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N-Heterocyclic Carbene (NHC)-Catalyzed Stereoselective Synthesis of Six-Membered Heterocycles and Carbocycles
N-Heterocyclic carbene (NHC) based catalysis is employed for the generation of α,β-unsaturated acylazoliums followed by their interception with various nucleophiles, the formal [3+3] annulation reactions for the construction ... -
N-Heterocyclic Carbene-Catalyzed Enantioselective Synthesis of Dihydrothiopyranones, Functionalized Benzofurans and Extending Michael Acceptor Aldimine Umpolung
Carbenes exhibit high reactivity as divalent species with six electrons in their valence shell. Their electrophilic nature arises from an incomplete octet. However, when a heteroatom is introduced adjacent to the carbene ... -
N-Heterocyclic Carbene-Catalyzed Enantioselective Synthesis of C-O Axially Chiral Diaryl Ethers, Tricyclic Lactones and Lactams
N-heterocyclic carbene (NHC)-catalyzed transformations with distinctive activation modes allow the facile synthesis of atropoisomers. In this context, we have demonstrated the NHC-catalyzed synthesis of axially chiral diaryl ... -
N-Heterocyclic Carbene-Catalyzed Synthesis of Oxazolones, e-Lactones and N-N Axially Chiral Molecules
The diverse reactivity of N-heterocyclic carbenes (NHCs) in organocatalysis is due to the possibility of different modes of action. Although NHC-bound enolates and dienolates were well-known, the NHC-bound cross-conjugated ... -
Nature of Local Interactions at cisPro-Aro Peptide Sequences in Proteins : Evidences for van der Waals type Interactions. Design and Synthesis of Novel Covalent Surrogates for the Peptide Hydrogen Bond
(2017-12-03)This thesis titled, “Nature of Local Interactions at cisPro-Aro Peptide Sequences in Proteins: Evidences for van der Waals type Interactions. Design and Synthesis of Novel Covalent Surrogates for the Peptide Hydrogen Bond”, ... -
New Anthraquinone & Xanthone based Ligands as Potential Anti Cancer Agents via Selective Stabilization of G Quadruplex DNA and Theoretical Insights into G Quadruplex RNA Binding with Certain Small Molecules
In recent years, different small molecules have been synthesized for selective stabilization of G-quadruplex DNA structures over the most abundant double-stranded duplex DNA. Stabilization of G-quadruplex DNA by small ... -
New DNA-Targeting Small Molecules as Potential Anticancer Agents and for in vivo Specificity toward Enhanced Silk Production
(2018-05-10)The thesis entitled “New DNA-Targeting Small Molecules as Potential Anticancer Agents and for in vivo Specificity toward Enhanced Silk Production” encompasses design, computational calculations, and syntheses of diverse ... -
New Supramolecular Ion Sensing Probes And Their Application In The Detection Of Environmentally Relevant Ions
(2016-03-04)The thesis entitled “New Supramolecular Ion Sensing Probes and their Application in the Detection of Environmentally Relevant Ions” deals with the design and synthesis of several small molecular probes which can specifically ... -
Norbornyl System Revisited : Exploring A Versatile Building Block For The Syntheses Of Natural Products And Analogues
(2009-03-11)Carbohydrates are ubiquitous and important biomolecules. Initially thought to be dull, energy storing moieties, the importance of carbohydrates and their conjugates, glycoproteins and glycopilids, in cellular communication ... -
Novel Approaches For The Synthesis Of Amino Acids And Piperidines, Including Asymmetric Strategies
(2014-04-23)Chapter I deals with novel approaches for α-amino acids. This chapter has been divided into three sections. Section A describes the synthesis of α-amino acids via the Beckmann rearrangement of carboxyl-protected β-keto ... -
Novel Biologically Active Chalcogenides : Synthesis And Applications
(2009-08-11)The thesis is divided in to five chapters. Chapter I: Synthesis of New thiolevomannosan derivatives In this chapter, a general and efficient method for the synthesis of conformationally locked thiosugars has been ... -
Novel Cationic Gemini Lipids, Click Chemistry Based Adducts And Amphiphile-Capped Silver Nanostructures : Synthesis, Aggregation And Biological Properties
(2013-01-23)The thesis entitled “Novel Cationic Gemini Lipids, Click Chemistry Based Adducts and Amphiphile-Capped Silver Nanostructures: Synthesis, Aggregation and Biological Properties” elucidates the design, synthesis, aggregation ... -
Novel Distamycin Frameworks For Enhancement And Photoregulation Of DNA Binding And Stabilization Of Higher Order DNA Structures
(2010-10-04)The thesis entitled “Novel Distamycin Frameworks for Enhancement and Photoregulation of DNA binding and Stabilization of Higher Order DNA Structures” has been divided into 4 chapters. Chapter 1 reviews the current trends ... -
Novel Redox Responsive Cationic Lipids, Lipopolymers, Glycolipids And Phospholipid-Cationic Lipid Mixtures : Syntheses, Aggregation And Gene Transfection Properties
(2018-01-07)The thesis entitled “Novel Redox Responsive Cationic Lipids, Lipopolymers, Glycolipids and Phospholipid-Cationic Lipid Mixtures: Syntheses, Aggregation and Gene Transfection Properties” elucidates the design, ... -
Novel Strategies for the Synthesis of Organo-Sulfur Compounds under Metal-Free Reaction Conditions
(2018-09-04)The thesis titled “Novel Strategies for the Synthesis of Organo-Sulfur Compounds Under Metal-free Reaction conditions” is presented into three main sections. Section A– deals with the synthesis of thiourea and thioamide. Section ... -
Novel Strategies Towards Condenced Triazoles, Ferrocene Aminoacids, Conjugates And Selenosulfides
(2011-01-17)Chapter 1: Facile entry into triazole fused tetrahydropyrazinones from amines and amino acids. In this chapter, A practical and high yielding regioselective synthesis of several new, enantiopure 4,5,6,7-tetrahydro[1,2, ... -
Novel Studies In Organic Stereochemistry
(2011-12-02) -
Novel Synthetic Strategies towards Acetylenic Biscarbamates/Biscarbonates and Organochalcogen Derivatives
(2018-05-01)Bisacetylenic cabamates/carbonates are most useful compounds in finger mark development, for the synthesis of polymeric gels and other material applications. Organochalogen derivatives are the organic compounds containing ...