Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/35523
Title: Transannulation as a Tactic in Natural Product Synthesis: DFT Study on Bielschowskysin
Authors: PRAVEENA BATTU
Keywords: Transannulation, Bielschowskysin macrocycles, Corey-Fuch reaction, DFT studies, ab-initio, DFT method B3LYP
Issue Date: 28-Feb-2011
Source: PRAVEENA BATTU (2011-02-28). Transannulation as a Tactic in Natural Product Synthesis: DFT Study on Bielschowskysin. ScholarBank@NUS Repository.
Abstract: My research work was focused on transannular studies as a tactic in natural product synthesis and proposed various synthetic methods to obtain the polycyclic systems from common macrocyclic intermediate. The macrocyclic intermediate was designed to obtain via Nozaki-Hiyama-Kishi reaction as key step; the key alkyne fragment was prepared using the Corey-Fuch reaction starting from L-tartaric acid. In the later chapter, I mainly focused on DFT studies to rationalize synthetic routes of bielschowskysin. Feasibility of transannular 2+2 cycloaddition reaction and macrocyclization from the linear precursor was evaluated by DFT calculations. The molecular structure and vibrational frequencies of the title compound in the ground state have been investigated with ab-initio DFT method B3LYP implementing the standard 6-31G(d) basis set, determined the total energy, enthalpy and free energy of the reaction.
URI: http://scholarbank.nus.edu.sg/handle/10635/35523
Appears in Collections:Master's Theses (Open)

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