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University of Northern Colorado

Master's Theses

Theses/Dissertations

2019

Chemistry and Biochemistry Student Work

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Construction Of A Flow-Based Atr-Ftir System: Decarboxylation Reactions Rates, Ashley Campanella Dec 2019

Construction Of A Flow-Based Atr-Ftir System: Decarboxylation Reactions Rates, Ashley Campanella

Master's Theses

Diacetyl (2,3-butanedione), a buttery flavored compound made during beer production, is formed from α-acetolactate via oxidative decarboxylation. Current analytical methods to detect diacetyl are time-consuming and expensive; however, measurements of carbon dioxide can be rapid and inexpensive. Attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR) utilizing a flow cell and mid-range infrared energy (400 cm-1 – 4000 cm-1) is capable of measurements for dissolved CO2. An ATR-FTIR system was constructed using a Ge flow cell, an HPLC pump, and stainless-steel tubing. A method for analyzing a model reaction compared to a natural process in fermentation was developed. Exploring the effects of …


Chromium Mediated Oxidative Transposition Of Secondary Benzylic Alcohols, Samara Weber Dec 2019

Chromium Mediated Oxidative Transposition Of Secondary Benzylic Alcohols, Samara Weber

Master's Theses

Carbonyl transposition serves as an important reaction in organic synthesis. Carbonyl transposition results in transposition of the functional groups without loss of the carbonyl moiety. Chromium oxidations of tertiary unsaturated carbinols have been studied since the 1970’s for their ability to cause carbonyl transposition. It is only recently that carbonyl transposition of secondary unsaturated benzylic alcohols has been reported with the use of chromium. Different oxidation reactions were examined for the potential carbonyl transposition products. Oxidation of unsaturated benzylic alcohols were maintained at varying temperature with pyridinium chlorochromate to monitor for the formation of product. As the temperature increased an …


The Synthesis And Characterization Of 2-Arachidonoyl Glycerol, Shawn Alan Bydalek Aug 2019

The Synthesis And Characterization Of 2-Arachidonoyl Glycerol, Shawn Alan Bydalek

Master's Theses

Cannabinoids are a structurally diverse class of compounds that act as ligands at the cannabinoid receptors, CB1 and CB2, through which the majority of the physiological effects of these compounds are mediated. Endocannabinoids (endogenous cannabinoids) are a subset of the cannabinoid family and include 2-arachidonoyl glycerol (2-AG) and N-arachidonoyl ethanolamide, and like most cannabinoids, these compounds have been shown to have anti-neoplastic effects on various cancer lines. The synthesis of 2-AG from dihydroxyacetone was selected as a research goal to try to improve yield over older published synthetic methods, to keep 2-AG in a protected form to avoid isomerization and …