Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"allyl complexes"”.
-
Investigation of the Steric and Electronic Properties of 3-Iminophosphine Ligands in Chelated Palladium Allyl Complexes for Use in the Regioselective Hydroamination of Allenes
A series of (3-iminophosphine)allylpalladium triflate complexes varying in both steric and electronic features was isolated and characterized. The propensity of the complexes in this series to regioselectively catalyze the hydroamination of 3-methyl-1,2-butadiene with aryl amines to form solely the …
-
The Mechanism of Formation of Pi-Allyl Palladium-Chloride Complexes From Olefins
… of ${\rm PdCl}\sb2$ with olefins bearing allylic hydrogens to give $\pi$-allyl palladium complexes is accepted to be a two-step process. Previous workers reported isolation of the presumed $\pi$-olefin complex intermediates and their conversion to $\pi$-allyl complexes under typical …
-
Copper(I) Hydride-Catalyzed Transformations of π-Electrophiles
… for the syntheses of enantioenriched homoallylic alcohols (Chapter 2) and homopropargylic amines (Chapter 3). The second part of this dissertation describes a method for accessing synthetically relevant β, γ-unsaturated acceptors (Chapter 4). — PART I Chapter 2: Regio- and Enantioselective …
-
Development of Cobalt and Nickel N-Heterocyclic Carbene Complexes for Cross-Coupling Reactions
… development of pre-formed cobalt and nickel NHC complexes analogous to their Pd counterparts would improve reactivity in Negishi, Suzuki-Miyaura, and Buchwald-Hartwig amination cross-coupling reactions. Co(IPent)Cl2(Pyr), Co(IPentCl)Cl2(Pyr), and Co2IPr2(OAc)4 were prepared, identified by X-ray …
-
Intermolecular C-H activation effected by CP*W(NO)-containing complexes
… (51 %). In the solid-state structure of all complexes the ortho-substituent is not coordinated to the metal centre; rather, the metal centre is engaged inagostic interactions with a neopentyl methylene C-H bond. Mechanistic studies on the chlorobenzene reaction reveal that the …
-
Allylcalcium complexes : synthesis, reactivity and application in homogeneous catalysis
… behavior and basic reactivity patterns of allylcalcium compounds. Examples for catalytic reactions of the resulting calcium compounds are given to evaluate the scope of applications. The first part describes the isolation of 1-alkenyl calcium complexes and their structural properties in …