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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.
11

The kinetics and mechanism of the polymerization of methyl methacrylate initiated by organomagnesium compounds.

Bateup, Brett Oliver. January 1974 (has links) (PDF)
Thesis (Ph.D. 1974) from the Dept. of Physical and Inorganic Chemistry, University of Adelaide. / Reprints of 3 articles published by the author included in back of book.
12

I, the reducing action of compounds containing the group]CH. OMgI; II, the reduction of aldehydes by the binary system, magnesium iodide + magnesium ...

Shankland, Rodney Veeder, January 1930 (has links)
Thesis (SC. D.)--University of Michigan, 1930.
13

I, the reducing action of compounds containing the group]CH. OMgI; II, the reduction of aldehydes by the binary system, magnesium iodide + magnesium ...

Shankland, Rodney Veeder, January 1930 (has links)
Thesis (SC. D.)--University of Michigan, 1930.
14

The synthesis of alkaline earth complexes using sterically-demanding multidentate amido ligands

Bradley, Mark January 2014 (has links)
Despite the well-established use of organomagnesium reagents, research into the chemistry of the alkaline earth metals has received an increase in popularity over the last two decades, largely due to their applications as reagents and catalysts. Recently, sterically-demanding A-donor ligands have become more popular because of their ability to provide stable metal-donor interactions and achieve kinetic stabilisation of the complex by crowding the metal centre. Furthermore, the isolation of subvalent magnesium and calcium complexes which challenged established knowledge of the metals prompted further investigations into their stabilisation in low oxidation states.
15

Studies of the kinetic and thermodynamic dependence of inversion ini organomagnesium and lithium reagents utilizing the methods of nuclear magnetic resonance spectography /

Dix, Don Tucker January 1966 (has links)
No description available.
16

Cationic organomagnesium complexes as homogeneous catalysts for the ring-opening polymerization of lactones

Ireland, Benjamin John, University of Lethbridge. Faculty of Arts and Science January 2009 (has links)
Polylactones are biodegradable polymers which may be used as alternatives to conventional plastics and have shown promise in novel medical applications. Industrial production of polylactones requires the use of a catalyst. The work described herein is directed toward the development of novel cationic magnesium-based lactone-polymerization catalysts. These cationic species are produced by alkide abstraction from a neutral precursor; a strategy which has seen only preliminary exploration in the context of lactone polymerization. The target catalyst system features a neutral phosphinimine-derivative ligand structure which was developed and produced specifically for the purpose of lactone polymerization catalysis. Target complexes were obtained by reaction of neutral alkylmagnesium precursors with protonated ligand derivatives. Syntheses and characterization of novel species are described herein. These catalysts are very active in the polymerization of 6-caprolactone, generating high molecular weight polymers in mere minutes under mild conditions. A preliminary study of polymerization catalysis is also reported. / xxiii, 126 leaves ; 29 cm
17

Synthesis of nitrogen containing heterocycles and polyfunctionalized compounds from N-tert-butanesulfinyl alkyl, alkenyl and homopropargyl amine derivatives

Sirvent, Ana 24 September 2021 (has links)
Esta tesis describe el estudio de la aplicación en síntesis de N-terc-butanosulfinil derivados de alquil, alquenil, homoalil y homopropargil aminas como intermedios para acceder a moléculas orgánicas de mayor complejidad. Por un lado, se ha estudiado la adición de compuestos organomagnesianos y organolíticos a N-terc-butanosulfinil iminas, y los distintos derivados de aminas que se obtienen como resultado se han usado como precursores de alcaloides pirrolodínicos y piperidínicos, así como para acceder a anillos tipo azepano. Por otro lado, también se presentan aplicaciones en síntesis de N-terc-butanosulfinil homoalil y homopropargil aminas, que pueden participar en reacciones de oxidación allílica y cicloadiciones [2+2+2], respectivamente, para dar lugar a compuestos polifuncionalizados, en el caso de los derivados de homoalil aminas, y derivados de 9-amino-9, 10-dihidrofenantrenos y 1,2,3,4-tetrahidroisoquinolinas, en el cado de los derivados de homopropargil aminas.

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