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Full-Text Articles in Physical Sciences and Mathematics

Preparation, Chemistry, And Characterization Of Hypervalent Organosulfur Fluorides, Paul R. Savoie Jan 2015

Preparation, Chemistry, And Characterization Of Hypervalent Organosulfur Fluorides, Paul R. Savoie

Legacy Theses & Dissertations (2009 - 2024)

Since the discovery of the pentafluorosulfanyl (SF5) group around the 1960s, progress in exploring the chemistry of aliphatic SF5-containing compounds stagnated because of a lack of efficient synthetic methods. More recent developments in the preparations of SF5-containing compounds afforded easier access to these compounds, and sparked great interest in exploring their chemistry. Chapter 1 discusses the development of efficient methods used to prepare SF5-containing aliphatic compounds.


An Atomic Absorption Method For Determining Micromolar Quantities Of Primary Aliphatic Amines In The Presence Of Secondary And Tertiary Aliphatic Amines, Nathalie Harwood Perkins Aug 1975

An Atomic Absorption Method For Determining Micromolar Quantities Of Primary Aliphatic Amines In The Presence Of Secondary And Tertiary Aliphatic Amines, Nathalie Harwood Perkins

Master's Theses

A method for the determination of primary aliphatic amines in the presence of secondary and tertiary amines is described. The primary amine is reacted wit ha complexing reagent containing cupric chloride, salicylaldehyde and triethanolamine. The copper complex formed is extracted into 10% hexanol in toluene. The amount of copper in the toluene layer is determined by atomic absorption spectroscopy. This is a measure of the primary amine in the sample. The method can be successfulyl applied to both monoamines and diamines as well as an amino alcohol. Data for the analysis is + 0.05% at the 2% level and below. …


Chalcones Derived From M-Nitroacetophenone, Richard Allan Hendry Jan 1952

Chalcones Derived From M-Nitroacetophenone, Richard Allan Hendry

University of the Pacific Theses and Dissertations

The object of this research was to prepare substituted derivatives of various chalcones having the nitro group substituted in the 31-position, the idea being to help complete the series of chalcones having the nitro group in that position. This was to be done by condensing various substituted benzaldehydes with m-nitroacetophenone, using dry hydrogen chloride as a condensing agent. The properties of the resulting chalcones were then to be determined by observing color reactions, spectra, and other general physical properties.