ACKNOWLEDGEMENT ABSTRACT LIST OF SCHEMES LIST OF TABLES ABBREIVATIONS LIST OF PUBLICATIONS CHAPTER 1: Palladium Catalyzed Multistep Reactions Involving Ring Closure of 2-Iodophenoxyallenes and Ring Opening of Bicyclic Alkenes Introduction Results and Discussion Conclusion Experimental Section References CHAPTER 2: Palladium Catalyzed Carbocyclization of Alkynes with Arynes and its Application to Synthesis of Phenanthro [1, 10-bc] Oxepine Derivatives Introduction Results and Discussion Conclusion Experimental Section References CHAPTER 3: Rhodium Catalyzed One-Pot Synthesis of Substituted Pyridine Derivatives from □,□-Unsaturated Ketoximes and Alkynes Introduction Results and Discussion Conclusion Experimental Section References CHAPTER 4: Synthesis of Isoquinoline and Tetrahydroquinoline Derivatives from Oximes and Alkynes via C-H Bond Activation Introduction Results and Discussion Conclusion Experimental Section References Crystal structures and copies of 1H & 13C NMR spectra