Now showing items 41-60 of 1149
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Studies in fulvene cycloadditions and in optical resolutions
This thesis entitled "Studies in Fulvene Cycloadditions and in Optical Resolutions" presents, in two parts and five chapters, the following: Studies on the 1,3-dipolar cycloaddition reaction of 6,6-diphenylfulvene with ... -
Studies in organic reaction mechanisms
The thesis entitled: "STUDIES IN ORGANIC REACTION MECHANISMS" "STUDIES ON SOME PSEUDO AND NORMAL ACID CHLORIDES" is divided into five chapters. Chapter I gives an introduction to the investigations described in the later ... -
Synthetic investigations on steriods
The objective of the present investigation was to develop a total synthesis of racemic and optically active steroids utilizing the CD-intermediate, 2,6,7,7a-tetrahydro-1?-hydroxy-4-formyl-7a?-methylindene (I). The literature ... -
Studies in ring-chair ..... group effects
The thesis entitled "Studies in Ring-Chain Tautomerism" consists of four chapters and an appendix. A study of the kinetics of alkaline hydrolysis of methyl 3-benzoylpropionate, methyl 4-benzoylbutyrate and methyl ... -
Studies in the stereochemistry of alkylation importance of gegenion co-ordination
This thesis describes investigations into the effects of methyl and ester functions as substituents syn-axial to the ?-centre in 6-cyclic carboxylic esters when ?-enolate formation is attempted. The effects manifest ... -
Catalysis through molecular association
The thesis entitled "Catalysis through Molecular Association" is divided into four chapters. The objective of the work described here was to develop a new method of ortho-carbonation of phenol in water, at room temperature ... -
Studies in oxidation of aromatic substrates
The thesis entitled "Studies in Oxidation of Aromatic Substrates" is divided into four chapters. Chapter I starts with a brief review of the reactions of organic substrates with peroxydisulphate. This chapter describes the ... -
Synthetic studies in terpenoids.
The thesis entitled "Synthetic Studies in Terpenoids" consists of five chapters and embodies accounts of: (1) a review for the first time of cuparenoid (arylcyclopentane) sesquiterpenes, (2) a new synthesis of p-cuparenone, ... -
synthesis investigations in terpenes
The thesis, entitled "Synthetic Investigations in Terpenes", consists of two chapters. Chapter I describes briefly the isolation, elucidation of the structure, determination of the absolute configuration and the reported ... -
Synthetic studies in terpenoids.
The thesis entitled "Synthetic Studies in Terpenoids" consists of two parts. The first and major part is devoted to terpenoid synthesis. In this, the synthesis of nine naturally occurring sesquiterpenoids, viz., (+)-nuciferol, ... -
Investigations in alycyclic chemistry : synthetic and stereochemical investigations in bicyclo (2.2.1) heptane and cyclopentane systems
The thesis entitled "Investigations in Alicyclic Chemistry: Synthetic and Stereochemical Investigations in Bicyclo[2.2.1]heptane and Cyclopentane Systems" is divided into three Parts. Part I is divided into three Sections. In ... -
Approaches to the total synthesis of steroids
The thesis is divided into two chapters. Chapter I – Section B describes the work done independently by the author. The rest of the work was carried out under the guidance of Professor D.K. Banerjee. Chapter I: The ... -
Studies on oxidation of naphthols using tetrachloro-o-benzoquinone. Ph.D. Thesis.9
The thesis entitled "Studies on Oxidation of Naphthols using Tetrachloro-o-benzoquinone" consists of three chapters and an Appendix. Chapter I is a brief introduction to the chemistry of oxidative coupling of phenols. Use ... -
Studies on sulphone and allied compounds
Introduction The present thesis consists of 5 parts excluding introduction. Introduction deals in brief with: (1) the discovery and the development of sulfone series of drugs, (2) the chemistry of the more important ... -
Studies in sulphonamides, sulphones and allied compounds
Studies in Sulphonamides, Sulphones and Allied Compounds Part I – Introduction The present thesis consists of four parts. Introduction under Part I deals in brief with: (1) the history of sulphonamide chemotherapy, (2) the ... -
Microbiological transformations of terpenes and steroids
The thesis entitled "Microbiological transformations of terpenes and steroids" is divided into three main chapters. Chapter I. Microbiological transformations of monoterpenes. This chapter commences with a review of the ... -
Studies on cation exchange membranes (perpmaplex-C-20)
The investigations described in this thesis have been aimed at contributing to the understanding of equilibrium and non-equilibrium phenomena in ion-exchange membranes. Towards this end, Permaplex C-20 has been chosen as ... -
Physiocochemical investigations on urea-nitrate calcium phosphate system
The experimental results obtained in the present investigation clearly demonstrate that when urea nitrate is ground with tribasic calcium orthophosphate, a reaction takes place in the solid-state even at laboratory temperature ... -
Substitutent and solvent effectson the electronic adsorption spectra of organic molecules, spectroscopy of nonbonded electrons.
The above results show that both the substituent and nitrogen on the N-transition of alkyl iodides are similar to those on the N-alkylamines, and the differences lie in rather three points. This is not surprising because ...