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Full-Text Articles in Physical Sciences and Mathematics
Cationic Ruthenium Complexes In Catalysis: The Activation Of Propargylic Alcohols Through Electronically Tuned Complexes, Matthew James Stark
Cationic Ruthenium Complexes In Catalysis: The Activation Of Propargylic Alcohols Through Electronically Tuned Complexes, Matthew James Stark
Dissertations
With increasing complexity of metal complexes, it is of worthwhile interest to pursue systematic examinations of ligand modifications to study their impact on the reactivity of a catalyst. To that end, this study aimed to understand the effect electron-withdrawing ligands conveyed to catalytic activity in the etherification of propargylic alcohols and related reactions. A number of half-sandwich ruthenium complexes bearing ligands with varying electron–withdrawing properties were synthesized and structurally characterized. Their electronic and structural properties were investigated utilizing X-ray crystallography, revealing that the series of complexes did not vary significantly in structure. The complexes were studied electronically with cyclic voltammetry, …
Progress Towards The Synthesis Of Iron-Based Hydrogenation Catalysts Using Hydroxypyridine Bidentate And Tetradentate Ligands, Sara Rockow
Summer Research
This project aimed to develop tools to increase the sustainability of the pharmaceutical industry. The pharmaceutical industry is one of the largest global markets; and one of the most wasteful. Catalysis has been identified as a key tool in sustainable chemistry. One of the most important catalytic reactions in the pharmaceutical industry is the hydrogenation of carbonyl groups, which traditionally relies on transition metal complexes. These metals are environmentally harmful; this project focuses on synthesizing iron-based hydrogenation catalysts as benign alternatives. In order to form the catalysts, organic ligands need to be attached to iron precursors. Simpler model ligands were …
Palladium-Catalyzed Carbonyl Allylation Reactions Using Tin Chloride: A Mini-Review, Armando M. Guidote Jr, Mikael John A. Baltazar, Roy Kristian C. Yanela, Noriyuki Suzuki
Palladium-Catalyzed Carbonyl Allylation Reactions Using Tin Chloride: A Mini-Review, Armando M. Guidote Jr, Mikael John A. Baltazar, Roy Kristian C. Yanela, Noriyuki Suzuki
Chemistry Faculty Publications
The treatment of allylic alcohols as synthons of carbanions for carbonyl allylation reactions in the presence of a Pd-SnCl2 system has been one of the most interesting and most useful developments demonstrated by Yoshiro Masuyama and co-workers in the field of organic synthesis. The reaction makes use of palladium as an effective catalyst and tin (II) chloride as a low-valent reducing agent which also effectively transforms the allylic group to a nucleophilic group. The organic, as well as organometallic, chemistry of how the transformations occur and how the metals take part in the reaction is of great interest. These could …