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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Development of novel metal-catalysed methods for the transformation of Ynamides

Smith, Donna Lee January 2013 (has links)
I. Rhodium-Catalysed Carbometalation of Ynamides using Organoboron Reagents. As an expansion of existing procedures for the carbometalation of ynamides, it was discovered that [Rh(cod)(MeCN)2]BF4 successfully promotes the carbometalation of ynamides with organoboron reagents. A variety of organoboron reagents were found to be suitable for this reaction, but mostly the use of arylboronic acids was explored. The developed methodology provides β,β-disubstituted enamide products in a regio- and stereocontrolled manner. II. Palladium-Catalysed Hydroacyloxylation of Ynamides. In the presence of palladium(II) acetate, ynamides successfully underwent a hydroacyloxylation reaction with a variety of carboxylic acids. This carboxylic acid addition occurred highly regio- and stereoselectively to provide α-acyloxyenamides. Applications of the α-acyloxyenamide products were also investigated. III. Rhodium-Catalysed [2+2] Cycloaddition of Ynamides with Nitroalkenes. A novel rhodium catalyst system has been developed in order to promote the [2+2] cycloaddition reaction between ynamides and nitroalkenes. The reaction provides cyclobutenamide products and was diastereoselective in favour of the trans cyclobutenamide. Both the ynamide scope and the nitroalkene scope of the reaction have been explored.
2

Development of Iron-Catalyzed Enantioselective Carbon-Carbon Bond Forming Reactions for Efficient Access to Bioactive Compounds and Their Derivatives / 鉄触媒によるエナンチオ選択的炭素-炭素結合形成反応の開発と、生理活性物質および類縁体合成への応用

Jin, Masayoshi 24 November 2021 (has links)
京都大学 / 新制・論文博士 / 博士(工学) / 乙第13456号 / 論工博第4196号 / 新制||工||1770(附属図書館) / (主査)教授 中村 正治, 教授 大江 浩一, 教授 村田 靖次郎 / 学位規則第4条第2項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

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