Annulation and Substitution Reactions Mediated by Cobalt and Scandium Complexes, Respectively
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Authors
Mohammadrezaei, Vahid
Issue Date
2021
Type
Dissertation
Language
Keywords
Arylboronic Acid , Nitrous Oxide , Pauson-Khand Reaction , Unsymmetrical Ethers
Alternative Title
Abstract
The following dissertation work is generally divided into five main chapters. Besides chapter one (Background) and chapter five (conclusion and future work) Content in chapter two and three have been published in Organometallics and RSC Advances in 2018 and 2020, respectively.
Chapter one is a short background of chemistry of ethers and Pauson-Khand reaction. Chapter two mainly focuses on the substitution reactions catalyzed by Scandium and Dimethylaminoprydine for the synthesis of unsymmetrical ethers. In terms of step and atom economy, substitution reactions using catalysts for the synthesis of asymmetrical ethers has been great deal of interest among all research groups. So, we have reported catalytic activation of alcohols using scandium triflate and dimethyl aminopyridine (DMAP) as the ligand for the synthesis of secondary and tertiary alcohols. In chapter four and five the development of the PKR has been reported. Using nitrous oxide as the promoter and arylboronic acid in the reactions enabled us to synthesize new molecular structure from the precursors which have not been reported before in the reaction.