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File:Synthesis of perfluorinated ethers by solution phase direct fluorination- an adaptation of the La-Mar technique (IA synthesisofperfl00ruth).pdf

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Synthesis of perfluorinated ethers by solution phase direct fluorination: an adaptation of the La-Mar technique   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
Rutherford, Gordon Bennett.
image of artwork listed in title parameter on this page
Title
Synthesis of perfluorinated ethers by solution phase direct fluorination: an adaptation of the La-Mar technique
Description
Thesis (M.A.)--University of Texas at Austin, 1990
Vita
Includes bibliographical references (leaves 125-128)
The synthesis of several perflourinated ethers of pentaerythritol, dipentaerythritol, and tripentaerythritol by direct fluorination in solution is described. These ethers were perfluorinated using elemental fluorine in a two step process. In the first step, up to 95 percent of the hydrogens were replaced by fluorine while the ether was dissolved in a chlorofluorocarbon slolvent. The remaining hydrogens were replaced by exposing the partially fluorinated product to pure fluorine at elevated temperature. The hydrocarbon ethers used as starting material were prepared by applying the use of phase transfer catalysis to the Williamson ether synthesis. Six of the perfluorinated ethers prepared have been previously synthesized by other methods: perfluoro-5, 5-bis (ethoxymethyl)-3, 7-dioxanonane, perfluoro-6, 6-bis(propyloxymethyl)-4, 8-dioxaundecane, perfluoro-7, 7-bis(butyloxymethyl)-5, 9-dioxatridecane, perfluoro-8, 9-bis(pentyloxymethyl)-6, 10-dioxapentadecane, perfluoro-7, 7-bis(2-methoxyethoxymethyl)-2, 5, 9, 12-tetraoxatridecane, and perfluoro-4, 4, 8, 8-tetrakis (methoxymethyl)-2, 6, 10-trioxaundecane. In addition, the following compounds were isolated and characterized: Perfluoro-2, 12-dimethyl-7, 7-bis (2-methylbutyloxymethyl)-5, 9-dioxatridecane, perfluoro-9, 9-bis (hexyloxymethyl)-7, 11-dioxaheptadecane, perfluoro-10, 10-bis (heptyloxymethyl)-8, 12-dioxanonadecane, perfluoro-11, 11-bis(octyloxymethyl)-9, 13-dioxaheneicosane, perfluoro-5, 5, 9, 9-tetrakis (ethoxymethyl)-3, 7, 11-trioxatridecane, perfluoro-6, 6, 10, 10,-tetrakis (propyloxymethyl)-4, 8, 12-trioxapentadecane, perfluoro-7, 7, 11, 11-tetrakis (butyloxymethyl) -5, 9, 13-trioxaheptadecane, perfluoro-7, 7, 11, 11-tetrakis (2-methoxyethoxymethyl)-2, 5, 9, 13, 16-pentaoxaheptadecane, perfluoro-4, 4, 8, 8, 12, 12-hexakis (methoxymethyl )-2, 6, 10, 14-tetraoxapentadecane and perfluoro-5, 5, 9, 9, 13, 13-hexakis (ethoxymethyl)-3, 7, 11, 15-tetraoxaheptadecane

Subjects: Fluorination; Ethers
Language en_US
Publication date 1990
publication_date QS:P577,+1990-00-00T00:00:00Z/9
Current location
IA Collections: navalpostgraduateschoollibrary; fedlink; americana
Accession number
synthesisofperfl00ruth
Notes some content may be lost due to the binding of the book.
Authority file  OCLC: 1085654231
Source
Internet Archive identifier: synthesisofperfl00ruth
https://archive.org/download/synthesisofperfl00ruth/synthesisofperfl00ruth.pdf

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Public domain
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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current06:04, 10 July 2020Thumbnail for version as of 06:04, 10 July 20201,172 × 1,568, 290 pages (6.5 MB)Fæ (talk | contribs)FEDLINK - United States Federal Collection synthesisofperfl00ruth (User talk:Fæ/IA books#Fork8) (batch 1990-1992 #7133)

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