Ghosh, Subrata2015-09-162023-10-192015-09-162023-10-192006ROLL NO.02612201https://gyan.iitg.ac.in/handle/123456789/79Supervisor: A. T. KhanThis dissertation describes thesuccessful efforts on the development of newer synthetic methodologies for tetrahydropyranylation/depyranylation, transition metal-free oxidation and thia-Michael reactions. The thesis contains mainly three chapters. Each chapter is subdivided into twoparts viz. Part I and Part II. Part I descrives a review of literature of the present work and its significance. Similarly, Part II gives an account of the work carried out by the candidate. Chapter I, Part I elaborates the importance of tetrahydropyranyl ethers in organic synthesis and their preparations from the corresponding hydroxyl compounds as well as their cleavage into the parent hydroxyl compounds. In addition, it also highlights reasons for choosing the research problem for investigation...enCHEMISTRYThesis